******* monthly fee charging

I was contacted by OnAir (a Multichoice approved installer) in 2020 to share that my decoder will no longer be serviced by Multichoice, and I need to upgrade. I did and agreed to pay R 160 per month for 24 months. I received my Explora Ultra as per the deal. However, I noticed recently that On Air has been charging me an additional R79 per month as they call it for added-value IT services., since my account has been paid up in June 2022. Something that I never agreed to. I was told that they sent me a sms to notify me and I am still waiting for proof and for the "added value" and where I agreed to pay this additional R 79.

This was the email I received from them "Kindly be advised that when your contract ended you were an SMS stating of the below:

"Kindly be advised that for 2 years you had a contract with On Air which was R160 per month, which covered the decoder. After two years the decoder became yours and your monthly amount changed from R160 to R79. The R79 is for 24/7 access to our remote IT support service, Rescue Box."

None of this was ever agreed it was R 160 for 24 months. What I am also still waiting for is, how will I be paid back, an explanation of what the so-called added value is and, if I did not query it how long will it have been charged....till the end of my days?

I would love to know if anybody else has experienced this, warning you, please check your bank account if you got a Multichoice Explora Decoder that you paid off through On Air you might still be paying even after it has been fully paid for.