Incorrect debit amount, Disgusted by telkom and the excuses!!

I am unhappy and disgusted with Telkom and the agents. I have a telkom data contract with them that expires in November. Things were going well up until last month. My monthly debit is R99. Last month on the 24th I was debited R2 022.12. I went to the Meadowdale branch, the lady there just said I must call the billing department. I did that and I spoke to an agent by the name of Thabang who told me that they are aware of the issue, there's a subscription that we "telkom customers" have been subscribed to. He will escale my query. I called the next day, the agent said it was not escalated, she will escalate. I called the next, i spoke to Lerato who also said there is no escalation, she will do it. Sadly they cannot refund my money to my account but to the Telekom account, which means I should extend my contract by FORCE. Today I spoke to an agent who told me the escalation wasn't done. My invoice shows that by the end of this month my bill is R4000. I WANT MY MONEY IN MY ACCOUNT BECAUSE I WANT NOTHING TO DO WITH EXTENDING MY CONTRACT!!!