********** Debit Order Claims and Non Existent Customer Service

MTN has ignored all of my instructions given via email, phone calls and in-store visits, whereby on 30 April 2020, I gave 30 days notice to cancel my contract with MTN, which then should have ended on 30 May 2020. At the end of June 2020, MTN took off the R544.29 which was disputed with both MTN and the bank. Now MTN have again taken off a debit order, for a higher amount of R692.08), which circumvented the debit order stop - this now constitutes *****. once you take out a contract with MTN you cannot get out of it, even when your 24 months is up. You cannot get to speaking to a person on the phone, and if you go into a store they refer you to customer care - which does not exist. I need MTN to CANCEL my contract in full, to stop taking ********** debit orders they are not entitled to.