Rain still deducting contract fees even after the contract was cancelled

I have had the 5G service for about a year. There was issues in my location with getting proper 5G. I then cancelled the contract in February 2022 - ***. They assured me that they will cancel the contract and they have already collected their Router. The problem is that they are still deducting R999.90 every month. When I phone I battel to get through to anyone. When I eventually get through to someone they only say that they are handing it over to the finance people but nothing happens. I need this resolved and my payments for the last 4x months paid back.