No response to a query

"How can we help you?" seems to have gone out the window! On the 3rd February I received an SMS informing me that the debit card on my business account had been cancelled. I called Business Banking to find out why. The lady I spoke to checked on the system and said a manager had cancelled the card but there was no remark on the system to indicate why it had been cancelled. She said she would email the manager and get back to me. As I had no response by the 21st of February, I submitted a query via the FNB website. I received an immediate acknowledgement but to date no one has contacted me. I then emailed the Business Manager at our local branch (Port Shepstone) on 2 March 2022 and guess what - 15 days later and no response! I recently opened a new business account with an annual turnover in excess of R4million and will generate over R100k a year in merchant fees for FNB. Sadly, after banking with FNB for over 20 years I am seriously considering moving all my accounts to another bank!