**********ly Over Debited my account

I am a client with vodacom. I have a 20GB data contract with them. My contract was supposed to end the end of Jan. I phoned in to confirm that i want my contract cancelled and that I do not want it to automatically continue. I spoke to a guy from vodacom which he took me through the whole process to cancell the contract and he confirmed that the contract will be cancelled the end of Jan. On the 9th of February I was debited by Vodacom an amount of R922. This is a load of BS. My contract is R328 pm and for the month of Jan i was Invoiced and amount of R380. I want to know from Vodacom what justified debiting my account an amount of R922 in a single month?

This is fruad. I have reversed the debit order as this was not authorized. I want Vodacom to investigate my previous call with on of their customer care agents where we cancelled the contract and I want Vodacom to rectify my account and charge me the correct amount that is due.