Telkom not stalling cancelling my contract for month though I'm still within the window/cooling period

I took out a 5 gig data plan end of December 2018 for R129, only beginning of January 2019 to be told there's another promotion of 10 gig for R169. I then sent a request to cancel my new contract since I was still within the window/cooling period and was told a consultant from the cancellations department would call me to confirm the cancellation and instruct someone to come fetch the router. Every week when I call I'm told the contract still shows "waiting for cancellations department" but nothing is happening. The downfall about this is that I the premium gets deducted every month though I'm not using the device and data. I'm not sure what Telkom is trying to achieve by stalling this cancellation, but I will claim my premiums back for all these months.