Update:
PNC Bank has closed our corporate bank account. PNC Bank is the only banking partner we have bulk ACH & Bank Wire capabilities with at this time. Payments by company check will continue to be available. We are in the process of gaining similar capabilities with other banks.
Available funds for other payment options remain limited due to the closure of some Bitcoin exchanges. We are working to expand our working capital in order to meet the needs of our clients.
April has been a challenging month with the extreme volatility of the aftermath of the second largest crash in Bitcoin history, the closure of bitfloor (and other exchanges), and now the closure of our primary bank account. We aren't going away. Despite all that happened in April we remain profitable, and no client has lost funds or had payments delayed.
Staff
Tangible Cryptography, LLC
Apparently the wires you receive from Mt Gox are setting off alarms at banks. My guess is that the feds are circulating memos to banks saying that MtGox is a possible money launderer. A simple warning like that will cause most banks to close the accounts of those that do more than a casual amount of business with them. They do this kind of thing all the time when they don't have any legal standing to stop people they don't like but want to stop them anyway.
This is just a suggestion, but perhaps you should setup multiple recipient accounts at different banks for receiving wires from Mt. Gox, and maintain one sending account at yet another bank that is only used for sending to customers. Money goes from Mt. Gox to a recipient account, and is then wired from the recipient account to the sending account where you use it to send out funds to customers. The sending account never receives money directly from Mt. Gox and is never in danger. Use only one recipient account at once, until it gets shut down, and then immediately switch your withdrawal info at Mt. Gox to a clean, already opened recipient account when the current one gets closed down.
In this way, you'll never have any downtime without a bank account to receive funds, and your sending account will likely never get shut down since it never receives money from Mt. Gox.