How can we help?
Everything you need to get the best from Mozillion — in plain English, from real humans.
Your account & phones
Your Dashboard
Check on an offer, update a card — your whole Mozillion account, all in one place.
SIM Card, eSIM & Plan Help
Data, settings, roaming and FAQs for every SIM, eSIM and mobile plan we offer.
Mozillion Assured Phones
Every phone passes our 90-point diagnostic check and visual grading inspection before it reaches you.
Selling & support
Unlock Your Phone
An unlocked phone is worth more. Here’s how to add up to £100 to yours before you sell.
Become a Seller
Get more of your phone’s true value by selling it directly to Mozillion.
Problems
We want delighted sellers and ecstatic buyers. If there’s a glitch, get it fixed here.
Sending Stuff Back
Technical faults and warranty claims — how returns work, start to finish.
Orders, payments & cover
Warranties and Insurance
Every phone comes with a 12-month warranty. You can beef it up with Mozillion Insurance.
Paying and Getting Paid
Nominate a card to pay us. Selling? We’ll also need your bank details to pay you.
Receiving Your Phone
Before you open the box, we’ve already checked it. Here’s what to expect on arrival.
Closing Your Account
Need to go? Here’s how — and we hope to see you again soon.
Buying & contact
More help
Refer & Earn Cash
Earn up to £50 every time a friend joins Mozillion through your link.
Holiday Deliveries
Ordering around a holiday period? Here’s everything you need to know about timing.
Complaints Code
How to make a complaint, and what happens after you’ve made one.
About Affirm
0% interest finance and credit — how it works and how to apply.
Kill Your Bill FAQs
How cash rewards work, eligible plans and getting paid — common Kill Your Bill questions answered.
