OnAir Disappointment and Frustrated!

OnAir does false advertising. They lure the people advising them that their decoders have expired and offer a deal which they they is a 24 month contract. When you read the fine print, the contract is actually a rent-to-own and then you would pay for more than the 24 month contract. I signed for the decoder on someone's behalf. OnAir states that I have a contract with them which I don't. They have been debiting my bank account from April 2022 to December 2024, by increasing the monthly instalment. I have called them, emailed them but the service is pathetic. I have asked them to cancel the debit order on my account and for 2 years, nothing has happened. I have contacted my bank as well. I do not understand why DSTV has partnered with a company who is downright pathetic. They do not follow instructions and do their own thing. When contacting their call centre, everyone has a different answer.