Contract Cancellation

When my data contract came to an end, MTN almost doubled the cost of my plan on a month-to-month basis. This was done with zero communication with me, though they were in possession of both a valid email address and cell phone number. After numerous attempts to cancel my contract, including being told that my request had been escalated on numerous occasions, I eventually asked my bank to reverse the next debit order charge. Follow on a couple of month later and MTN again tries to debit my account!!! All of this without ever communicating with me or once getting back to me as promised, following the "escalations"!!! Absolutely disgusting customer service!