Frozen business account

I'm so not excited about my current situation as I opened a Business bank account on the 5th of December and on the 6th it was frozen along with the clients funds I am a runner I use the account to avoid carrying cash to avoid the situation of being ****** because it happened to me a lot before I opened a business account I thought all my troubles are over. I have never been so frustrated in my life, the person who froze my account sent an email seeking proof of my business books or records and I provided her with proof and as though that wasn't enough she froze my account I think people use their positions to harass and frustrate us their customers. What an awful experience I have with this business account how are we supposed to work if we can't maintain and keep our clients funds secure. We fear on the streets but we mistreated and harassed by banks. Now I'm explaining and apologising none stop to the client and other clients too as they wonder if I can't manage and secure such small funds how will I be able to maintain large funds. I write with a sunken heart a crashed spirit and a heavy thoughts I'm so saddened by the whole experience.