Falsely debited! ****!!!

I have a mobi account and pay just now Acc with finchoice, my debit orders went off as normal for the month of April, they kept sending notifications that they were unable to debit my account, however, payments went through! They debited me a second time on the 6th of May and still show my accounts as outstanding! This is affecting my credit profile and they continue to leave my account not updated!! I call they take forever to answer! When they answer calls just get cut for some reason without me being assisted! I spoke to a Kharim call got cut, I called again and spoke to a Candice and call got cut again! , they don’t even bother to call back!! They are quick when they want their money, but they are busy making administrative errors on their end and then when it’s time for you to get your money back their phone lines barely work!