2Checkout I want my money back from 2Checkout Internet

I open my account 2 weeks ago. I invoiced my client two invoices, then they close my account. I have tracking number for my shipments. I have not idea what is going on with my business.

There is over $6800 of money in my account and they didn't let me know what is going on with my remaining of my money. I sent several email with a few other questions and have the same reply:

After a review of your account XXX485XXX, 2Checkout has decided it is not in our best interest to engage in a business relationship with you. The account has been closed. I’m afraid you have to find some other solution for your business needs. Your final payment was on March 18, 2015. We wish you and your business great success in the future, and we thank you for allowing 2Checkout to serve you.

I need the money to pay my supplier. I read on the net that they will ripoff the money and never give you back! I want my money back ASAP!