Complaints form

Something’s gone wrong – your form hasn’t been sent. Please check the information you’ve entered and try again.  

Please complete the details below.

    We’re sorry to hear you haven’t had a great experience. If you fill out our form, we’ll do what we can to make it right.

    We answer most complaints within 7 working days, but it can sometimes take longer. We'll contact you first by phone, or by email if we can't reach you. If you've already sent us a form, please bear with us. We’ll be in touch as soon as possible.

    If you’d like to resolve the issue quicker, you can also contact us via Live Chat or give our customer team a call.

    Make sure you use the same details you use for your Three account, as this will help us to resolve the issue as quick as possible.

    • Mr
    • Miss
    • Mrs
    • Ms
    • Mx
    • Dr
    • Professor
    • Reverend
    • Prefer not to say

    Please use the DD/MM/YYYY format

    Find your address

    • Pay Monthly
    • Pay As You Go
    • Mobile Broadband
    • Home Broadband
    • Business

    The mobile number you're complaining about.

    The Mobile or Home Broadband account number you're complaining about.

    e.g. Voucher, App, Call Centre, IVR, Web top-up

    Please enter the amount in £XX.XX format

    • Personal Account
      • Billing
      • Network issues
      • Joining Three
      • Renewing with Three
      • Leaving Three
      • Device loan agreement
      • Delivery issues
      • Payments
      • Deposits and refunds
      • Device faults and repairs
      • Pay As You Go
      • Accessibility and vulnerability
      • Insurance
      • Fraud
      • Data security
      • Service from staff member
    • Business Account

    More information about your complaint 

    If there's something specific you think we could do to solve this, let us know here. Make sure you don't share any sensitive or personal data, such as bank details.

    What is the best number to contact you on?