Thou shall not lead me into further debt.

I app**** for fiber line 12 months ago, due to family issue, in October2022 I moved from where the fiber line was installed and keeping up with my monthly payments dwelled. Which I ended up in arrears. So right now, my contract has come to an end, but Vodacom is not allowing to cancel my contract till I finish paying my arrears of +/_R8 000. So when I make a payment arrangement, they still don’t want to cancel my contact and say that my contract is on a month to month basis, which I don’t want, because after the 4 months is going to take to pay them then I'll be in arrears again, because while I’m paying, they are still billing me. Vodacom is leading me further into debt. Please cancel my account, let me make a payment arrangement that is not further leading me into a bigger arrears.