ABSA Vehicle Finance

I have been with Absa for the past for years financing my car. I traded my car in, in February and got into a new contract with them financing my new car. The first debit was supposed to go through in March 25 2021. It did not happen and 3 days later they sent me a message saying I missed my payment. I called them requesting that they debit the installment and 2 days later that was not done. I called them again and still there is nothing. I am worried that this might affect my credit score. Please help.