MTN CONTRACTS

Good day

I have opened 2 contracts with MTN I called to cancel the one I ordered in march and the lady I spoke to told me to pay a cancellation fee of R200 and something i did not do so because just after that call the second contract sim was delivered but was never activated and the first one was also deactivated as I didn't receive data since I called to cancel so I was under the impression it is cancelled. I app**** for finance in the week for a car and that's when I found out I am listed by MTN the banks does not want to approve me but i never ever received a call from MTN asking me to pay my account or to tell me debit orders bounced so they just decided they are going to list and put a legal status on my name, I then called and they informed me that my account is in arrears with R794.07 as I need to now pay the account and what's outstanding and I am paying MTN Legal and I need to pay this amount first then I can cancel the contracts because they will continue debiting my account every month even if I am not receiving data and didn't receive in the past 2 months I then paid this amount to MTN and I have sent emails I have called and they keep putting me through to the 083135 number where the lady is saying we cannot help with any self service at this moment please try again later when I call the customer care the lady told me everyone uses this number so the more I am telling her I'm not getting through to anyone she says everyone uses this number and again she put me through to the same menu to enter my MTN number and when I do it takes me back to the menu I have bought over 300 airtime for MTN In the past 3 days and up to this moment no response I have sent proof of my payment because I need a clearance letter or paid up letter for finance and I did not get any response, I also now want to close this contracts because I don't want to continue doing any kind of business with MTN and I never ever will again the customer service is horrible and they are of no help. My contracts needs to be cancelled to avoid it being debited further but how do I do that if no one working with cancellations of contracts is assisting me I'm holding for hours no answer.