Still paying after cancelling mobile data contract

I am still unhappy with Telkom. I noticed I am still paying for a mobile data contract more than a year after I cancelled it.<br> <br> The matter is as follows, I had to go in to Woodlands Shopping centre in 2013/2014 to cancel the contract. <br> <br> I comp****, went back to Woodlands Shopping centre AGAIN, signed all the paperwork, and the person working there ensured me that the contract is cancelled.<br> <br> This last month I have been trying to get a refund, Telkom started telling me they are sorry the person at the shop in Woodlands misfiled the paperwork - you will be refunded!<br> <br> This response changed to - prove to us that you cancelled the contract.<br> <br> Here is your proof: check when I was in the store to cancel the contract - compare that to the last time I used the data service. Why would I ever stop using the service, if I knew it was still active and I am still paying for it.<br> <br> I expect Telkom to refund me for the fact that they slipped up by not doing their admin correctly, why should I have to pay for their mistakes?<br> <br> Don't give me the, \we will be in contact response\". Please resolve the matter ASAP. "