Frustrated

I am at my wit's end. I no longer know how to deal with your offices. I have been struggling to settle my account for the last year and every time your office just makes it harder. For the last year, your offices have been debiting me for amounts not agreed upon, I've been struggling to get balances from your contact center when they actually decide to want to work or when they are able to take your call. Finally, in November I was able to receive a balance and immediately settled over that amount to ensure the account can be closed. Now I'm receiving emails regarding missed payments when the account was settled. How do I have a balance when the account should've been closed off? This is ridiculous. Believe me, if I could rate your office a zero I would. The one star is still being very kind