Account closure

Wow, I went to Woolworths to settle my accounts and I was assisted by a consultant, during the process the consultant/cashier used the wrong method of payment cash instead of card. I settled both the Store card and the loan but months later I received calls from Woolworths Finance that I haven’t paid my accounts and their are on arrears. I have sent emails and went to Woolworths stores with no help, but the interest is still increasing monthly. I’m not happy with how my matter is being handled as I’m no longer working and my credit profile is being tarnished because of incompetency from your staff. I need this matter to be sorted and my credit report to be fixed too. MSA Shoai ***.