Telekom is making my life hell

I hope that someone will read this and give me advise on how to escalate this issue further. I opened a contract with Telkom mobile using their online service on the 24th of July 2017. On the 25 an agent by the name of Sizwe called me and assisted me with opening the contract. On the 7th of August a parcel was delivered to me but it was a wifi home router instead of the Huawei P10 lite I wanted. I then called Telkom to I formally them that a wrong device was delivered. After countless calls to Telekom the router was finally picked up on the 22nd of August 2017 ( waybill number is ********** 5 Courier IT). I was then told to fill in a cancelation forms which I did and send it back together with a copy of my ID and copy of the waybill slip. Foolishly I thought it will be a painless process and it will all be sorted out soon. I say this with a heavy heart that till today the contract of the devise I don't have is still not cancelled. My account is debited every month and because I feel that I don't owe Telkom anything I reverse the debits every month. I recently check my credit status and realized that my credit score and record is now in red because of Telkom. I have tried everything in my power to get Telkom to cancel this contract but nothing has been done. This is not the 1st time I'm writing a review about this issue but Telkom has chosen to ignore me. On Thursday I was told that the cancelation department is waiting for someone to coffin if they have received the router. My question to Telkom is how long does it take to check for a devise. I have proof that the router was taken from me of which I have given them. Why should I suffer for something that was never my fault? What will happen to me if they don't find that router? No one from telkom has ever tried to call me and give me feedback concerning my case. My case number is ********** 1. I plead to anyone who will read this review with better knowledge about consumer rights to please advise me on what I should do. Your help will be highly appreciated.