MTN *******ly debit

I settled my contract on 20 December 2022. However, in late 2023, I began receiving emails stating my account was in arrears. Upon visiting an MTN store, I was directed to the legal department, which confirmed my account was closed on their end. Despite multiple attempts throughout 2024 to resolve this, my bank account was debited R2,095.25 on 29 November 2024 and R1,164.03 on 28 February 2025 without justification.

Why was I not informed or sent any correspondence from 21 December 2022 when the account was R0.00 to 12 May 20224 where the balance was R3243.53