Upgrading contract without consent

I had a 2gig data contract with Vodacom @ R149 p/m that was upgraded to a different account (@R699) without my consent. A call was logged in January (S3-8U12E-EG6QL) to have the contract changed back to the original and to have the difference in monthly payments paid back into my account. An affidavit stating the claim was submitted as per Vodacom's request.<br> After following up on the matter on the 07/03/15, 15/04/2015, 17/04/2015, 04/05/2015, 11/05/2015, 13/05/2015, 19/05/2015, 25/05/2015, the call has still not been resolved.<br> Promises have been made to have the refund paid into my bank account since 08/04/2015. On later to find out the credit note was processed and the refund paid into my Vodacom account. To date, efforts to get the refund paid into my bank account have been in vain. To date, no confirmation that my account has been changed back to the 2gig data package, have been provided.<br> Having dealt with a number of call center representatives, it would appear that Vodacom is either unwilling or incapable of refunding me for moneys charged, for a contract change that was done without my consent.<br> <br>