Cannot make payments on my business banking account

I am SO frustrated. I have called the call centre 3 times now to get an answer on why I am unable to transact on my Business Banking Account. first time : Business Banker told me he couldn't help me second time : business banker transferred me to someone else who didn't pick up third time : online banking person transferred me to someone else who didn't pick up and cut me off. I am so SICK of FNB's approach to support - NO SUPPORT !!! Call centre agents just say they can't help, transfer a call into oblivion. I am unable to pay suppliers today and I am LIVID !