Capitec Business Bank no customer service

I have open a Business account at Mercantile Bank that changed to Capitec Business Banking. I have used the business card untill I reached my limit. My personal banker doesn't return my calls or emails. So I tried to call the call center, everytime they put me through to a personal banker that was suppose to answer, but I have to hold on. I have phoned more than 5 times and each and every time I'm holding on for more than 8 minutes with no one picking up the phone. I could find out that there is a monthly limit as well and needed to complete forms. This I find out after lots of phoning and holding on. I send in the forms but no one is coming back to me. I also needed to open a 32 day notice account. I don't know why this could be so difficult to resolve. I get the impression that the staff at the call centre doesn't want to work and it's easier to just put me through to a machine that told me to hold on. This is my first experience with Capitec Business and I really feels it's very unprofessional. There's no branch that I can walk in to get it sorted out either.