How to Top Up

Here's all the ways you can apply your Voucher to your Asda Mobile phone

  • Why use

    Safe & Secure Payment
    We are a PCI compliant company, You can use any Credit or Debit Card, Google Pay & Apple Pay.

    Fast Delivery
    You will receive your Voucher code by SMS and email with 30 seconds.

    Your Privacy is Protected
    Once you use your Voucher Code your details are wiped from our system automatically.

  • How do I top up my GiffGaff phone?

    By Phone:

    1. Dial 43430 from your GiffGaff mobile
    2. Follow the instructions in the menu. Make sure you have your GiffGaff voucher at hand.
    3. Your Giffgaff call credit will be topped up.


    1. Log into the Giffgaff website
    2. Enter your top up voucher code, your topped up!

  • How do I check my GiffGaff balance?

    By Phone:

    Dial *100# followed by the CALL button on your phone.
    You should see your balance appear on screen straight away.


    Log into your My Giffgaff account

  • How long is my GiffGaff call credit valid for?

    Your Giffgaff call credit doesn’t expire. However, to use it, you need to keep your SIM card active. To do that, make a chargeable activity at least once every 6 months. A chargeable activity is a call, a text, mobile data usage, or a top up.

  • How do I top up my GiffGaff when abroad?


    Logging into your My Giffgaff account is the easiest way to top up abroad

  • How do I contact GiffGaff customer service?


    You can either ask your question on the Giffgaff Community website or log in to your account and ask a support agent. Typically, you'll get a response within 24 hours.

Buy A Top Up Voucher