STOP TRYING TO DEBIT ME!!!!

I took out rain 5g LTE month to month contract in Jan 2022, the service was good for the first month and there was no drop in connection, after that there issues started where I'd wake up and for the first hour or 2 there would be no internet connection forcing me to find other means of getting online and then these drop in connections started to become more frequent. I subsequently cancelled my rain contract online in March 2022 and I was called and asked what was the reason for cancellation and I mentioned the above. I was told that I would be contacted for someone to come and collect the router. The following month Rian tried to debit my account. Fortunately I cancelled that card so they couldn't. Long story short, I've made several calls to rain regarding the cancelation of my account but i keep getting the same story about how it's been "escalated" yet every month I get an sms from Rain saying my account is in arrears and the amount keeps increasing. This is not fair and it's not right! FIX IT RAIN! What do i need to do in order to cancel? I've already discouraged anyone who wants to get rain not to get it because of this issue.