Regret ever being with Mtn, worst service trying to cancel a contract

Worst service . Trying to cancel a contract since July . Get billed for things you don’t know of . Ridiculous. You enquire and they say they will give feedback a month will pass with nothing . Nobody knows what they are doing . They always refuse to give contacts of supervisors. You have to call everyday and speak to different people and never ever get any assistance. pathetic ! And they block your SIM card while you have unresolved billing queries .