Good day I would like to report UNIFI

Good day I would like to report UNIFI.CREDIT I had a loan with them that was paid monthly...i was retrenched in September and they still continued to debit my account but the last installment i made a payment arrangement and they were supposed to adjust their debit order amount to R100 which they did not ,they then went into my account *******ly and debited my account with R526 this morning. This is ******* as they have a payment arrangement in place to pay R100.