cell c once again unable to assist

I’ve had a MiFi device which has reached its end of the contract term, I’ve called many times to cancel this contract as it went on a month to month contract. I was advised that last month would be my last debit order but I’ve been debited again.

I’ve had enough with you guys, I cannot keep calling and telling you the same thing over and over and every time I call I have to hold for 10min then the call gets cut.

Please cancel this contract asap and kindly refund me as I wasn’t supposed to debited again