Edgars pathetic service

Edgars service has become utterly pathetic. First they were not deducting my payments and not sending me statements. When I requested the statements I saw that for some reason the installments had increased which was strange given that the card was not in use. After fighting for 2 months the next month my installment was lowered. Because of this hassle I requested a settlement figure which I paid. I sent through proof of payment with a request to close the account and send me a letter stating the account has been closed. This month a received a statement from them. I emailed 2 departments requesting that this matter be addressed as I have closed the account. It has been 5 days and no response despite the automated reply saying they would respond in 48hours.