Wrongly charged

Good day

My name is Sifiso Mbuyisa, i had a contract with mtn which i paid R339. 00 every month until it ended. My problem started when it ended mtn didn't cancel the contract but istead added subscriptions and increase the payment to R1550. 00 without any explains and without my consent.

They debited the money couple of times and until i cancelled the debit order, as time i was told i owe R3140.00 and I need to pay and settle the acount so they can cancel it. I paid the amount in July but when i asked them for settlement letter i never got it. I sent them emails and called then several times but they failed to help.

One day when i called them i was told the account is on hold and under invistigation, i don't even know what they are invistigating when i am the one who is falsely charged. While i am fighting that i then got a message that i have a pending mtn debit order of R4580. 14. I am really confused now, what will it take for this contract to be cancelled and MTN stop false charges but repay everything penny charge wrongly charged me.

Thank you