Mobicred after Services very bad

Mobicreds client service are no good. I wanted to settle my account, so I got an amount which was even more than my credit was with them when I started, also take note that my account has been paid every month. I have been waiting for 6 weeks now for them to give feedback on my backdated payments so I could settle my account. I tried to call them and all they said was, please send an email to the accounts department, we don't work through calls.