Contract canceled and then debit order keeps going off

Hi, I have called in the 4th week in 2018 and canceled my contract. I spoke to Nandipha @ disconnect services. My viewing was indeed cut off but the debit order went off again today and an additional R115 +/- was deducted with the debit order. I am currently on a call wasting my time and waiting for someone to assist me, I was told with my previous call this morning that there is not cancellation on my account. This is absolutely ridiculous and I need a manager of sorts to call me and sort this out i.e. cancel the contract and refund me in full.