Standard bank blocked my card for no reason, and now the ***** deparmdnt can't unblock as they say they don't know why the card was blocked.

There is a block on my business card/account, how and when it happened i don't know.I can't access my money.It's been 2 weeks and even the ***** department can't help me cause they say they don't know why it was done, and they can't get hold of the person who did it at transactional. Now i have to physically go inside the bank to sort this out. I am so disappointed, what an incovenience.