Unable to Pay account/Poor service

I have been contacting the call centre for months now. 1.) My account was blocked due to a ***** investigation. Once the investigation was called I could no longer use my app to make payments. 2.) I have been paying via eft but my outstanding balance is not being updated/reduced. 3.) I have called customer service multiple times and being transferred from pillar to post, I am constantly receiving calls that my account is in arrears and that is in turn affecting my credit score. 4.) I am extremley unhappy with the service and require a detailed statement from Sept 2021 to date to reconcile. My preffered method of communication is email as I cannot access my cellphone.