wrong account subscription payment

I received a MYOB notice that my subscription was in arrears, rather strange as I always pay by DD. I proceede to pay July and August 2026 subscrition to the wrong account. Subsequently my account has been partially disabled, with no access to bank feeds. Usually I pay by direct debit but July/August 2026 were not made. A week went by  and I had no help from  "myob.com/billing-help" and the MOCA bot. Please help to rectify this probem , it is rather urgent as I had no luck with the MYOB/Help ! 

Rosine