REFUNDING OF MY ACCOUNT

In April, FNB deducted R180 from my Account because the Merchant (Speedway Service Station in Impala Park), made a late payment. I went to put Fuel into my Car on the 16th of April, the day after I got paid, and it was the first thing I did on the 16th,and since it already got deducted from my Account, I went to do my weekly shopping. The Merchant only went to pay the Bank on the 19th, my Salary was obviously finished by then, and when they went to pay, te system showed an insufficient funds error in My account, which caused the payment not to go through, therefore FNB charged me for the error. And, as I already said, I had SUFFICIENT FUNDS in my Account when I went to put Fuel in the Car, it was already deducted from Account, so how can I be responsible for late payment from the Merchant?

I chatted with FNB Consultants on their App, where I was referred to an email address, ***,where I was assisted quite quickly, I must say, I was told that FNB will refund me the money, but after not receiving the money, I followed up on Chat again, where I was was told that the matter was escalated, and that usually takes 3 to 5 working days to be resolved. So, this is now a month down the line, and after no refund, and no response from the Bank to even tell me what is going on, I have send 2 emails again, 1 week apart from each other, nobody is even responding, and it is frustrating me as it wasn't my fault the the Merchant made a late Payment and R180 isn't just small change. I also wasted R15 Airtime to try and phone them, but I never got any assistance on the telephone, they were too busy, so now it is R195 down the drain.

Can someone please sort this out for me as I really need my money back.