Telkom Still Charging me for a Closed account

<p>I cancelled my LTE account at the end of July due to no signal at my complex. I was still billed R350 on the 1st of August and R350 today 1st September!! The device was handed in and everything was closed at the end of July according to the store in Rosebank! I need to be refunded R700 and please make sure I am not debited next month! Case Number ********** 2</p>