RCS and Edgars is a customer service disgrace

I’ve tried every phone number to get assistance, I called the Edgars account number. They ask me to call some other RCS number, I call them and they give me another number and those guys give me another number and eventually they give me the Edgars accounts number again. One of the numbers is a collections department??? Since my very first credit-based account, I have not missed a single payment on anything EVER! This is something I pride myself on. I requested 3 times my account to be closed when Edgars moved over to RCS and service fees started! All 3 times I didn’t owe Edgars anything and requested a closure letter. The agents assured me the account is basically closed it just needs to be finalised by another department. I have not heard a word. I emailed all the email addresses I can find for Edgars/RCS, the only response I get is the automated one, or they ask me to email another email, I religiously email but get nowhere. I even send Facebook messages, they say “your request has been sent to the relevant department”. This has been months now without getting anywhere. This is absolutely ridiculous and I hope this does not affect my credit rating seeing as they don’t understand the concept of customer service.