Incorrect billing on 2 different accounts

Hello

I have two accounts with Cell C. I signed up for fibre with Greencom and had one active account with them. I know have two accounts with Cell C Fibre.

I want to know why I am being billed for the one account (***9) and on my second account which is the correct one (***10) I am being billed for an incorrect amount which I never signed up for. Please can you send me all documentation which I signed for these two accounts.

Regards, Simon