Over Billing, suspension

This is my 2nd data contract with Telkom , Aug last year there was a billing error whereby i was billed twice in one month (Aug 2018) , i reversed one payment and let the other one go...to my surprise Sept 2018 i was billed double and R200 extra for reversal of debit order which no-one informed about i had to call and follow up. I asked for my account to be rectified even today no success, i was issued with a demand letter to pay my account after suspension without an invoice or communication . Still no invoice even today, March 2019 i was debited R1500 for the contract which i reversed.

Can someone please sort out my account as am willing to pay but i dont appreciate being taken for a fool, where is the courtesy to inform me of what going but all you do is suspend, demand letter then boom R1500 off my account.

since last year i only have one case number ********** 8 but i have been fighting endless battles with you people. i dont have an issue with the product but your service and lack of communication and the decency to apologies when you are wrong or have made a mistake.