Lying and cheating bankers

Terrible service. I opened up a fnb premier account in November 2019 after going to find out about the requirements, the gentleman who helped me told me it was possible to open the account then and get all bank fees waivered until end of January which is when I needed the account from, given that information, I opened the account against my better judgement and now i'v tried to get the fees waivered twice but the bankers refuse to do it and I cannot seem to find the banker who gave me that information at that branch anymore. He costed me close to R400 with his lies and it reflects very poorly on FNB. Please can this be sorted out ASAP as I need the money and the gentleman who **** to me be sorted out.