No reply after cancellation request

I have been trying to cancel my membership with this company due to budget restraints and terrible service. I was quoted a ridiculous cancellation fee of over R3000 which I can in no way afford due to budgetary constraints. I inquired how this amount had been determined but no one has responded. After that I've resent my cancellation request and still no response. I would like to cancel my contract and if necessary pay a REASONABLE cancellation fee. I do not have any outstanding fees on my contract but really cannot afford to keep the membership and rather distaste the unfriendly and unprofessional service I've received the past year. Multiple mistakes have been made with debit orders and none of the branch staff seem to be able to sort anything out in a timely fashion, and with regards to cancelling my membership supposedly I can only do this via email, and not in person at the branch I've joined at which just seems ridiculous. I am fed up with this company and this contract. I do not usually complain about anything but after months of struggling to cancel my contract I am really fed up. Can someone please just send me a reply ASAP and resolve this issue in a reasonable way? Tx