Unfair business practice

I downgraded from premium to easy access from 1st September, ever since then this has been a nightmare starting with a debit order they deducted for premium subscription which I downgraded from. I disputed the amount and went to the Randburg walk-in centre to pay faith my debit card on the 5th September 2024 @1h51. Since then they keep disconnecting the easy access view R29.00 a month excluding decoder x2 insurance and xtra view totaling R227.00. Now receive a message saying I should pay ZAR 1,068.21 for what, what kind of back and forth is .its been over a yr since I left subscription for premium. Remember this is prepaid if you don’t pay they discontinue the signal, I’ve been to the walk-in centre more than 2x to ficks this problem