Home loan account money disappeared without trace

Hi, I had a very bad experience with FNB regarding the home loan account. I have been paying the home loan account through my Apsa Banking app. Apparently, the money was not getting into FNB for whatever reasons, and tried to call them, arrange with them, send them the proof of payment, and for almost starting from February trying to sort out the matter, changing from one person to another, different consultant, from days equal, you'll be transferred from one consultant to another, from collection to admin, admin to collection, and nothing has been done actually about the matter because the first guy I spoke to, one of the consultants from FNB collection, believed that I've used the wrong branch code when I'm doing all those payments. So now, I went to the second one, the other one, she took all the same things that I gave the first one, that other one didn't even give me the feedback because she said she's still waiting for feedback from whoever was investigating the matter. And then the third one, I got the response, the response was, the response was, I've used, actually it is an assumption that I've used the wrong branch code from abroad, which I don't know, abroad to where, or the money reversed, went back into ABSA suspense account. ABSA, I went to them and then they said they don't have the suspense account, they did give me papers to show that the money was successfully paid into FNB account. So it's becoming more difficult because now FNB is sending me SMS's that they will auction my house if I don't pay the amount that I owe them,I have paid 10,000 plus 8,000 plus 8,000 plus 7,000 in total, around 33,000, which is somewhere, the areas, yeah. So however, trying to do so, but it looks like the matter is not going to be solved until I started going for complaints because I thought we will solve this without any complaints or something, mainly because I'm not getting any help when I call, I'm just told that they are still waiting. So with the email that I got that I've used the wrong branch code, I don't understand because the money is paid into the account number, not the branch number. So I don't know whether FNB don't have people who are capable of doing the job or it's just that they just want to, between the banks, ABSA and FNB, the money can't just be lying around somewhere where no one can trace the money. Now I'm feeling that they just want to sell the house without solving this matter. Sending their people to review the house. I understand there were areas, but they not helping just want see me home less. What is worse they send me forms to fill in to quickly sell the house.

The can't disappear between the two banks. The matter is not solved yet