FNB forex- poor service

Forex payment has been made to my account on the 18th of November 2020. I have send Fnb the MT103 to enable them to search and allocate the funds to my acc but to no avail. They keep on replying that they require the Mt103. This has been send 3 to 4 times.

Really pathetic service. Till date this has not been resolved after numerous calls and emails.

I have even asked my private banker for assistance but he/she can only do so much

Is there no other way to resolve this.......HELP!!!