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Member Services

Contact Member Services

Warehouse Enquiries


Telephone: 01923 830477

  • Our Member Service Call Centre opening times are:
  • Monday - Friday: 8am - 6:30pm
  • Saturday: 8am - 4:30pm
  • Sunday: 9am - 3pm
  • Excluding Public/Bank Holidays


  • Warehouse Membership Enquiries
  • Warehouse Membership Amendments
  • Executive Membership Enquiries/Rewards


Please click on the links below:


Costco Concierge Services - Free Technical Support. Learn More


How to become a Vendor:



  • Hartspring Lane
  • Watford
  • Hertfordshire
  • WD25 8JS

Registered No. 2635489
VAT No. GB 650 1862 52

Online Shopping Enquiries


Freephone: 0800 0324 324

  • Our Online Call Centre opening times are:
  • Monday - Friday: 9am - 8pm
  • Saturday: 9am - 3pm
  • Sunday: 11am - 3pm
  • Excluding Public/Bank Holidays

Easter Weekend Opening Times:

  • Good Friday: 9am - 3pm
  • Easter Saturday: 9am - 3pm
  • Easter Sunday: CLOSED
  • Easter Monday: 9am - 3pm


  • Online Registration & Subscription
  • Online Technical Support
  • Online Purchase Returns


Popular Links

Costco Concierge Services - Free Technical Support. Learn More



  • Dockham Way
  • Crick
  • Northamptonshire
  • NN6 7TZ


Website Enquiries

To report any website issues (e.g. broken links) please email:

Contact Costco Concierge Services/Technical Help for free technical support on Televisions, Projectors, Computers, Major Appliances/White Goods*, Cameras, Camcorders, Tablets, Security Camera Systems, Printers, Mobile Phones and MP3 Players you purchase at Costco Wholesale UK Ltd or Our customer service agents can provide expert assistance on these products we sell and are dedicated to helping you with technical issues and questions. Call Freephone 0800 066 5091 to speak with a technician (12 noon to 12 midnight, 7 days a week – excluding bank holidays).

To access this service please have your name, address, item number or order confirmation, purchase date, model number and manufacturer’s name.

Costco is constantly striving to enhance the experience you have with us, so if you need assistance or you've got a complaint, we'd like to hear about it so that we can work to fix what went wrong.

Please call our Customer Care Centre on Freephone 0800 0324 324 (Our Online Call Centre opening times are: Monday - Friday: 9AM - 8PM, Saturday: 9AM - 3PM, Sunday: 11AM - 3PM, Excluding Public/Bank Holidays).

Or you can email us at:

Or write to us at Customer Care, Costco Online UK Ltd., UK Home Office, Hartspring Lane, Watford, WD25 8JS, United Kingdom

Or fax us at: +44(0)1923 257186.

Please include your name, address, item number or order confirmation, purchase date, model number and manufacturer’s name (if known).

Escalating your complaint:

If after contacting us you feel that we still have not resolved your complaint satisfactorily, please email or write to our Head of Customer Care at: or by post at Head of Customer Care, Costco Online UK Ltd., UK Home Office, Hartspring Lane, Watford, WD25 8JS, United Kingdom.

If you wish to avail yourself of the European online dispute resolution process, you may find more information here:

Groupon shopping voucher is strictly for customers who purchased Costco Individual membership through Groupon*


Receive a £10 warehose-only Costco Shopping voucher plus a free Fresh Twin Pack British Chicken, Kirkland Signature Carrot Cake and a pack of 48 Kirkland Signature AA Batteries.

See if you qualify for Costco Individual Membership

* Terms and Conditions:

  • The Offer: The Costco £10 warehouse-only shopping voucher will be provided after completion of the Costco membership application. Entire value of the Costco membership activation voucher must be used in a single visit. Valid for new Individual members only. This offer is not for a renewal of Costco membership. Each membership includes a 12-month spouse or domestic partner card. This may not be combined with any other offer or with other coupons. Costco accepts cash, cheques, debit cards and American Express. Please provide employment ID card or current pay slip to prove employment plus a current utility bill, electricity, gas, telephone, water or a bank statement addressed to a residential address. Verified using our merchant's price list on 1 April 2019.
  • Membership restrictions: Groupon shopping voucher is for NEW Individual Costco Members only* Find out if you qualify for Costco Membership. You must qualify for membership in the warehouse. If you don't qualify, you will be refunded by Groupon. Valid for members employed in banking, finance, civil service, education, fire rescue services, insurance, local government, medical, health service, police force, post office and airline, or those qualified as a chartered architect, chartered civil engineer, chartered surveyor, dentist, optician, pharmacist, qualified accountant, solicitor, barrister, magistrate, advocate, doctor or optometrist. Employees of certain approved companies are also eligible: please call 01923 830477 or email for further details.
  • Online Restriction: Cannot be used online at
  • Validity: Valid in all UK Warehouses from 15.04.19 until 12.05.19
  • Redemption: Must present printed or mobile Groupon on arrival. 14-day cancellation policy.
  • Purchase: Limit 1 per household, may buy 1 additional as a gift (Membership Restrictions still apply).