Pathcare poor customer care

I recently got a call from a path care agent alerting me that discovery health ( my medical aid) had made a payment in 2021 that was to cover some R400 + that I owed for a lab test, but because it was not linked to the item they submitted, they could not internal transfer the funds to the correct unit and that I therefore needed to pay even though this showed as credit in my pathcare account. They were waiting for Discovery to magically discover the problem, recall the payment only to resubmit it showing the correct link. Within a week of the call and while I was following up with Discovery Health, I got a call from a debt collector saying my account was forwarded to them and that i needed to pay via them. I found this unbelievable because Discovery paid the amount from my medical savings, money which is in pathcare account but now I needed to pay again and somehow hope that Discovery will recover this money from them and credit my account. What is annoying is that they forwarded it to a debt collector instead of first refunding Discovery and then asking for it to be submitted in the way they want. Has anyone had such an experience with Pathcare?