Vodacom's Poor Service

I have cancelled my data contract that was on a month to month bases only to find out that the people in cancellations have cancelled the wrong number. I am sitting with a situation now because the number they cancelled is the number I use for business purposes. All the calls that was recorded with regards to the cancellation will just show that the incorrect account was cancelled. You have it on record of the account that was supposed to be cancelled and technically, the contract is legally terminated, which means you should have no access to my bank account, and if any money from my account should be deducted you would be *****ing from my bank account.