Overcharged

I stopped using the sim card in Jun wen they gave me a scary amount to pay wen I was supposed to pay 700,even today they still trying to debit money from my account and to my surprise I'm now owing them over 3k,wat for cos their sim is disconnected

Capitec: Your 702.98 online payment at Rain exceeded your 0.00 balance and was declined. Fees are charged for failed transactions.

Capitec: Your 2811.91 online payment at Rain exceeded your 0.00 balance and was declined. Fees are charged for failed transactions.

Capitec: Your 598.00 online payment at Rain exceeded your 0.00 balance and was declined. Fees are charged for failed transactions.

This is total harassment