17-03-2018 11:11 PM
There's no account access on these forums, so you will need to call CS tomorrow to discuss billing.
18-03-2018 09:26 AM
Your bill should tell you. If you can't understand it, you should phone CS for an explanation.
18-03-2018 12:28 PM
Hi and welcome to the community @Georgiar1997
Please get in contact with customer services who will be able to look into the breakdown of your bills and see what is causing your overpayments.
Let us know how you get on.