I'M VERY UNHAPPY, VODACOM!

I have been on the line with vodacom for the past hour, I have had to phone back three times because they dropped the phone twice and now they just keep transferring me to the next person. I made an arrangement in May of 2018 to pay off the outstanding amount for the contract in 3 payments and I specifically asked that they cancel the contract as well. According to my knowledge this contract was cancelled. The account was always debited from by ABSA account, I recently switched to Capitec Bank and never gave my Capitec Banking details to Vodacom since I wasn't aware that the account is even still active.

Now raising the question, "Who gave you permission to debt my account?" NO ONE CAN ANSWER ME.

HOW CAN THEY DEBIT MY CAPITEC ACCOUNT WITHOUT MY PERMISSION???? And why was I not informed that they contract was not cancelled when the debit orders did not go through on my ABSA account?