Billing mess

I owned a game store card for a while, andngame decided to give me a payment holiday in december and did not debit my bank account. Along came RCS and said I missed my payment, and I should immedeatly rectify this. I decided to settle the entire account and asked for a quote, however you never responded to this request, even after my second request. So i settled the entire balance via the app, and asked you to close the account which you also did not respond to. Now another month on, you added mpre fees to the account even though there was a zero outstanding balance on it. Please sort this out and close this account