FNB couldn't care about my business

I have sent mails to *** as recommended by an FNB survey to get assistance with multiple issues and follow up on other emails I have sent. This has been ignored totally like the previous emails. I have a business credit card that expired in January and I have been trying to get a new card issued. They have issued me with two new petro cards. I have tried calling, messaging via the app and the online banking system. I have tried everything and I have not even had the courtesy of a response to say it is busy being resolved, busy being investigated or even been received. I am at my wits end with FNB. I have never been completely ignored before! They have really gone down in terms of their service.