****** by my own bank

I have a business account with std bank, on the 30.04.15 I sold goods and my customer paid by credit card . By the 08.05.15, 8 working days later the money still did not clear in my account. I contacted merchant services and later that day was contacted by Daniel who said we can't sell textile goods because we also sell auto parts however I import both auto parts and textile goods under one custom code and one company. Also we have taken payments for textile goods on numerous occasions & I was never told this before. Due to this my account was short of money and my debit orders returned. No one contacted me to say there was a dispute with the goods sold. Today 11.05.15 I made contact with the bank again. This time Daniel said he will send someone out to investigate at my premisis. When I asked why I was not contacted earlier to have this resolved sooner, Daniel said it takes 3-4 days to get confirmation from my cutomers bank, so why did I have to call in 1st after 8 working days, it's now 11.05.15 and only today he is arranging to send an investigator but he can't tell me when they will come, so I have to just wait while my money earns intrest in std banks account.