Switch my Credit!!!! More like switch on the stress!

I would give FNB 5 stars every step of the way for it's usual effeciency however today I am left floored by a systemic issue. This morning we got approval for a credit switch option. We app**** via the App and had a few hiccups but eventually it was processed. In short we had selected some accounts and deselected some. Sadly this morning we discovered that 4 accounts which I had already settled and deselected had been paid and the 3 that I had manually added had not been processed. I contacted the Financial Department and discovered that I was now to make contact with those 4 stores and request refunds. What happens to the accounts that were not paid that I had requested payment on. This is a complete error as the totals that we had received in our quotation had made provision for the updates once we had recalculated, why is it this now my error. I value my relationship with FNB and had never encountered an issue previously so it's shocking when your agent asks me why is this amount reflected if I apparently made full payment as if I was lying about the 4 accounts being fully paid. I am not on trial and I am able to provide paid up receipts as this was done from the very bank account disputing these balances. This is not a error on my end and it's disheartening to know that there seems to be no urgency in wanting to assist me. This entire loan is incorrectly processed. Can you please help.