Incorrect Debiting of accounts

I had an initial contract with Telkom for R139 Per month. I decided to get another contract for myself which was R199. On the 26/09/2017 i received an sms saying "You account will be debited on 29/09/2017 for R3278.22" . So being concerned , i called and spoke to Nontobeko Mkhize, she gave me a case number # ********** 9 which she told me that it will take 2 to 72 hours for the money to be refunded back into my account. Which was not done. I called back after a few days, querying it again, still nothing. So she advised me that i should go to the bank and reverse the funds and to pay the money that i needed to pay, which i did. I reversed the money and paid R478 which i was supposed to pay to bring the account up to date. Then on the 24/11/2017, Telkom debited my account with R549(unauthorized debit). So i called telkom, spoke to a lady, she promised me for her manager to call me back within 48 hours........NOTHING.. I called back, spoke to Sihle (Manager) he saw the problem and advised me to send my bank statement to him(which i did)...No response.. They then debited me again R371.88 on the 30/11/2017.

Still waiting for sihle to refund me..Its been 20 days since i sent the email. NO REFUND YET. So i called on the 21 December 2017 at 07:30 and spoke to Siboniso, who was very helpful and promised to get Sihle to call me back...Sihle since has not called me back. So i called again at 03:30 on 21 December 2017 and spoke to Tebogo for about 45 min 32 seconds. He was very helpful, found the problem and still is now escalating it to his supervisor. I NEED MY REFUND..... They told me DO NOT REVERSE THE DEBIT ORDER. I actually want to cancel this as they have breached the contract that we have signed. My contact number is ********** 652