********* underhand tactics to attempt to enforce a non-existent contract

I telephonically entered into a contract with Onair TV per Order No.OA-***4-1.The terms were that On-Air Tv would provide me with an Dstv Explora Ultra in return for a payment of a premium. The Explora was delivered in January 2024.Upon perusal of the documents and an extensive enquiries I discovered that I had been misled in entering into the contract. I lodged a complaint with On-Air and after it's investigation it was confirmed that there was a misrepresentation of fact by the agent of On-Air. On18 January 2024 the contract was cancelled by mutual agreement and I was provided with a reference number. There was an undertaking by them to arrange courier to collect the decoder within 10 working days.Days elapsed and the decoder not being collected. I then started calling On-Air asking that the decoder be collected. I had by that time cancelled the debit order with my bank. I started receiving sms reminding me to have sufficient funds for the instalment to be deducted. On realising that there was no debit order in place I received threatening sms to say my credit worthiness would be affected. I never stopped contacting them and every time the blame would be put on SkyNet, a courier company. To date I have made 8 phone calls,1 email,1sms to On Air reminding them to collect their decoder.The response would, at times, be that SkyNet came to my home and I was not there.I can say all that are untruths as I have never been contacted by this courier company. I have the dates and the names of the agents I spoke with. The last call I received was on Saturday 23rd March informing me that my account was in arrears. This is highly ********* and ******** conduct on the part of On-Air seeking to enforce an invalid contract. The Explora Ultra is still not collected. There was also an article published in The Daily Dispatch about On-Air around January.