You'll need to add extra credit to your UK Phone Sim or UK Data Sim Card for the following reasons:
For your UK Phone Sim Card
If you want to call or text an Australian, American or Canadian number, you'll need to add extra credit.
Click here to go our website recharge page, where you can purchase a recharge voucher in the following amounts £10, £20 or £50. Our website also tells you what it costs to call or text non-UK numbers.
If you are staying longer than 30 days then you Click here to go our website recharge page.
For your UK Data Sim Card
If you use up all 3GB of data you'll need to add extra credit.