How do I update my credit card?

Hello I’ve got a problem with my cell phone. I cannot make telephone calls.

I think I have found out why. My old credit card number has been in Friday and I have received a new credit card. Can you not help me to put my new credit card on file with you?

Moderator’s note: Title edited to provide context.

Here is the payment document, including what to do if you have an overdue bill.

You should have received an Email that your bill was overdue, so you need to make sure your Email address is correct too.

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