STILL NO FEEDBACK, AND IM STILL STRUGGLING UNTIL WHEN?????

Im still struggling with FNB weeks later, received an email with the reference (***NF ) and was advised to provide the account number in question and the date it was opened, and they will investigate and get back to me, to date no one has come back to me, this account was apparently KYC'd and SARS had already paid my rebate into this account, SARS cannot help and have advised that I find out from FNB, I have gone to branches, I have called numerous times, and the service is just terrible, worst part is now that the call centre is working remotely I have no access to speaking to a supervisor or manager and the agents are rude...Please advise what must be done for me to get help and get answers as to where this money has gone to, Im exhausted by this run around that looks like its for nothing.....