05 Oct 2026

Kill Your Bill FAQs

Everything you need to know about shrinking — or killing — your monthly phone bill with Mozillion.

Your Kill Your Bill questions, answered

Where can I find a list of the brands and current rewards?

You can check the app after purchasing a SIM Only plan, or click the link below to preview the current brands and rewards.

Here is a link to preview…

Does my bill actually go to £0?
Yes. Once your accumulated rewards match your plan cost, your bill is £0 that month. Any unused credit rolls to the next month automatically and never expires.
Am I spending extra to earn rewards?
No. You spend exactly what you would have spent anyway. You’re just routing it through the app first. Same shop, same basket, same total.
How quickly does the eSIM activate?
60 seconds. Scan the QR code in the app, add the plan in your phone’s settings, and you’re live. No physical SIM needed.
Do I have to go to a shop?
No — Kill Your Bill is for online as well as personal shoppers.
Can I make gifts to family and friends?
Absolutely. Through the Mozillion app, you can buy and send store gift cards as presents — and receive even more instant cash rewards to shrink or Kill Your Bill.
How do I know how much I’m killing my bill by?
The app states the cash reward on the amount you are spending. Your dashboard gives you a running total of how you’re shrinking — or even killing — your bill.
I already have a Mozillion SIM-Only plan. How do I join Kill Your Bill?
If it’s a pay monthly SIM-only plan you can upgrade to one of the Kill Your Bill plans. Even mid-contract. Upgrade your plan in your dashboard.
Does joining Kill Your Bill cost me anything?
All you need is a Kill Your Bill SIM-only plan (see above). Then just shop like you do every week with our partners, and get an instant cash reward applied to your Mozillion bill every time.
Do I have to change where I shop?
No. You shop at the same places. The only change is you buy their gift card through the Mozillion app first — takes about 10 seconds before you go.
What if I earn more than my bill amount?
Credit rolls to next month automatically. It never expires and you never lose it.
How do I get my Cash Rewards?
When you’re about to pay, open the app, find your chosen brand, and follow the instructions. Your cash reward is instantly credited to your monthly phone bill.
Why do I buy a brand’s e-gift card?
It has a QR code on it, which you scan (in store) or enter at the checkout (if shopping online). As soon as you buy any gift cards you receive your cash reward direct to your phone bill, so feel free to buy them in advance.
What if my cash rewards come to more than my next Mozillion bill?
Your monthly bill is absolutely free, and we roll over any credit balance to your next bill. So you never lose out on rewards you’ve earned.
What if I want to return a purchase I’ve made?
Just contact the brand or service directly in the usual way. Note: refunds are not available on the gift card purchase.
Is there a limited in how much I can save?
There is no limit.
Does my plan include Kill My Bill / is it eligible?

To check or upgrade your plan, simply go to your Mozillion Dashboard

All Kill Your Bill SIM-only plans come with:

  • Kill Your Bill rewards to shrink or wipe out your phone bill
  • Unlimited calls & texts
  • Uncapped 5G speeds
  • Free EU roaming
  • No mid-contract price rises

If you want to start benefiting from Kill Your Bill, make sure you are on one of these eligible plans.

What is my Kill My Bill wallet balance?

To check your Kill Your Bill wallet balance, please:

  • Log in to your Mozillion Dashboard.
  • Navigate to the Dashboard tab.
  • Look for the section labelled Kill Your Bill reward.

This will show you how much you have killed your bill by and how much more you need to go until your bill reaches £0.

My Kill My Bill eGift card purchase hasn’t arrived.

If your Kill Your Bill eGift card purchase hasn’t arrived, please check the following:

  • Ensure your purchase was completed successfully in the Mozillion app.
  • Check your email inbox and spam/junk folder for the eGift card code.
  • If you still can’t find it, contact Mozillion Customer Service for assistance.