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Tesco Customer Service Number – Official UK Lines and Hours

James Edward Carter Cooper • 2026-04-29 • Reviewed by Sofia Lindberg

Reaching Tesco’s customer service team requires knowing which number matches your needs. The UK retail giant operates multiple helplines for online orders, in-store purchases, Clubcard issues, and mobile services. This guide consolidates the official contact information, opening hours, and alternative ways to get help.

Whether you’re tracking a grocery delivery, reporting a missing Clubcard, or setting up your Tesco Mobile account, the right number gets you to the right team faster. All contact details below come from Tesco’s official help pages and verified sources.

What is the Tesco Customer Service Phone Number?

Tesco operates several dedicated numbers depending on the nature of your enquiry. The main general lines handle in-store and broader customer queries, while separate numbers exist for online shopping, Clubcard support, and mobile services.

Quick Reference Grid

For most customers, the primary numbers to know are 0800 505 5555 for general in-store enquiries and 0800 323 4040 for online grocery support. Clubcard holders should call 0800 591 688 for card-related issues.

  • 0800 505 5555 handles in-store product queries, pricing questions, and general shopping assistance
  • 0800 323 4040 covers online grocery order problems, tracking, and delivery issues
  • 0800 591 688 serves Clubcard customers for lost, stolen, or general card enquiries
  • 0345 numbers provide mobile-specific support and work as alternatives where 0800 lines may not apply
  • Opening times vary significantly between services, with weekday hours generally extending later than weekend slots
Service Phone Number Opening Times Notes
Online Grocery Orders 0800 323 4040 Mon-Sat: 7am-11pm
Sun: 8am-10pm
Free call; option 4 for Marketplace, option 3 for F&F Clothing
In-Store Purchases/General 0800 505 5555 or 0345 304 0030 Mon-Sat: 7am-11pm
Sun: 9am-6pm
Resolver complaints line is 0345 304 0030
Clubcard Help 0800 591 688 Mon-Fri: 8am-8pm
Sat: 9am-6pm
Lost/stolen cards and account queries
Tesco Mobile (General/Tech) 0345 601 2448 or 0345 300 6660 Mon-Sat: 9am-8pm
Sun: 11am-5pm
Pay Monthly complaints: 0345 301 4455
Accessibility/Technical 0800 323 4040 or 0800 323 4060 Mon-Fri: 9am-11pm (accessibility)
Mon-Fri: 9am-5pm (electrical)
Relay UK available; email form option

Is the Tesco Customer Service Number Free to Call?

The 0800 numbers offered by Tesco are free to call from both UK landlines and mobile phones. This applies to all three main lines: 0800 505 5555, 0800 323 4040, and 0800 591 688. The company confirms this policy on its official help pages.

The 0345 numbers operate differently. These are standard rate numbers from mobile networks, meaning your mobile provider may charge for the call. Tesco Mobile support offers both 0345 options as alternatives for technical assistance, but customers on other networks should be aware of potential costs.

Cost Consideration

When calling from a mobile, using the 0800 numbers saves you from any per-minute charges. If you’re unable to reach a free 0800 line and must use a 0345 number, check your mobile plan for included minutes that might cover the call.

Tesco notes on its official site that calls to customer service numbers may be recorded for training purposes. This is standard practice among large retailers and helps maintain service quality across enquiries.

What Are the Tesco Customer Service Opening Times?

Opening times differ across Tesco’s various service lines. The longest hours apply to online grocery support, while Clubcard and mobile services operate on more restricted schedules.

Online and In-Store Support Hours

Online grocery support via 0800 323 4040 runs from 7am to 11pm Monday through Saturday, with Sunday hours from 8am to 10pm. This makes it the most accessible line for customers with busy schedules. The general in-store purchases line (0800 505 5555) follows similar hours, though some sources indicate slightly shorter Sunday windows closing at 6pm.

Clubcard and Mobile Service Hours

Clubcard support operates during more traditional business hours. Monday to Friday, the line is open from 8am to 8pm, contracting to 9am through 6pm on Saturdays. Sundays see no Clubcard telephone support. Tesco Mobile support sits between these extremes, operating 9am to 8pm on weekdays and 11am to 5pm on Sundays.

Verify Before You Call

Opening times listed here reflect current schedules based on official Tesco sources and supporting verification sites. Times may vary seasonally or during bank holidays. Checking Tesco’s official help page before calling ensures you have the most up-to-date information.

How Do I Contact Tesco Customer Services?

Beyond phone calls, Tesco offers several contact methods for customers who prefer digital communication or need assistance outside of telephone hours.

Digital and Messaging Options

WhatsApp and web chat provide alternatives to phone calls. The number 0800 917 7403 connects customers via WhatsApp for online shopping, Clubcard, and in-store enquiries. Tesco’s “Little Helper” virtual assistant is available around the clock, with live team support during standard business hours. To access chat, customers can scan a QR code on the help section of the website.

Email and Written Enquiries

An online contact form offers another route, particularly useful for detailed enquiries that benefit from written documentation. The accessibility form specifically receives responses within 72 hours. For postal correspondence, including formal complaints, the address is PO Box 1142, Warrington, WA55 1EU.

Social Media and In-Store Assistance

Tesco maintains active customer service presence on Facebook and X (formerly Twitter) for Tesco Mobile queries specifically. The store locator tool on Tesco.com helps customers find their nearest branch along with specific opening hours and available facilities. For immediate in-store issues, speaking with a colleague at the customer service desk often resolves straightforward problems fastest.

Customers experiencing accessibility challenges will find Relay UK support available for those who are deaf or hard of hearing, and dedicated lines exist for electrical product technical support. For those seeking broader UK customer service context, resources like Is My Car Insured UK offer related guidance on utility contacts. For more information on saving money on groceries, please visit the save groceries 5 4 3 2 1 method. save groceries 5 4 3 2 1 method

Tesco Customer Service for Online Shopping and Mobile

Online grocery customers have access to dedicated support through the 0800 323 4040 line. When calling, the automated system directs callers through specific options: pressing option 4 connects Marketplace sellers, while option 3 reaches F&F Clothing support for fashion purchases.

Tesco Mobile Support Options

Tesco Mobile customers requiring technical support or account assistance should use the dedicated mobile numbers. General and technical support is available at 0345 601 2448 or 0345 300 6660, operating 9am to 8pm Monday through Saturday and 11am to 5pm on Sundays. Pay Monthly customers with billing or service complaints have a separate escalation line at 0345 301 4455.

Mobile-Specific Resources

The Tesco Mobile contact page provides online tools for common queries including SIM activation, upgrade requests, and bill management. Using these self-service options often resolves straightforward issues without waiting on hold.

For customers facing connectivity issues with their home internet, checking real-time status tools can help determine whether an outage is local or network-wide. Understanding your connection status before calling support often helps diagnose issues more efficiently.

Summary: Reaching Tesco Customer Services

Tesco provides multiple contact pathways tailored to different customer needs. The free 0800 numbers cover most general enquiries for landline and mobile callers, while 0345 lines offer mobile-specific support as alternatives. Online tools, WhatsApp, and email provide non-phone options for those who prefer digital communication.

For the most efficient outcome, identify your specific need first—whether general shopping, online orders, Clubcard matters, or mobile services—then use the corresponding number and call during the appropriate hours. Keeping Tesco’s official help page bookmarked ensures you can verify current information whenever needed.

Frequently Asked Questions

What is the main Tesco customer service number?

The main general customer service number is 0800 505 5555 for in-store and broader shopping enquiries. For online grocery issues, the dedicated number is 0800 323 4040.

Is the Tesco customer service number free from a mobile?

Yes, the 0800 numbers (0800 505 5555, 0800 323 4040, and 0800 591 688) are free to call from both UK landlines and mobile phones. The 0345 numbers may incur standard mobile network charges.

What number do I call for Tesco online shopping help?

Call 0800 323 4040 for online grocery order problems, delivery tracking, and modifications. This line operates Monday to Saturday 7am-11pm and Sunday 8am-10pm.

How do I contact Tesco Mobile customer service?

Tesco Mobile support is available at 0345 601 2448 or 0345 300 6660, Monday to Saturday 9am-8pm and Sunday 11am-5pm. Pay Monthly complaints can be escalated to 0345 301 4455.

What are Tesco Clubcard customer service hours?

Clubcard support at 0800 591 688 operates Monday to Friday 8am-8pm and Saturday 9am-6pm. The line is not available on Sundays.

Can I contact Tesco via WhatsApp?

Yes, WhatsApp support is available at 0800 917 7403 for online shopping, Clubcard, and in-store enquiries. The “Little Helper” virtual assistant is available 24/7, with live team support during standard hours.

Where do I send a written complaint to Tesco?

Written complaints and postal enquiries should be sent to PO Box 1142, Warrington, WA55 1EU. Tesco’s head office is located at Tesco House, Shire Park, Kestrel Way, Welwyn Garden City, AL7 1GA.

Does Tesco offer accessibility support?

Yes, Relay UK is available for customers who are deaf or hard of hearing. An email form is also available through the accessibility zone on Tesco.com, with responses typically within 72 hours.

James Edward Carter Cooper

About the author

James Edward Carter Cooper

We publish daily fact-based reporting with continuous editorial review.