In the past we have provided direct support to exchanges over Skype chats. I have pm'ed you my username.

Depending on the issue .. why don't they just post in the forum?
Are they concerned about bad PR?

What's the best way for exchanges like Bittrex to get developer assistance with BitShares wallet/client issues quickly?

Bittrex have an issue at the moment which means their BTSX wallet is offline (last 18hrs) for all their clients while they wait for a response via myself (as I helped to get them on board) to their issue.

I'm always happy to help, but I'm no BitShares developer  :o

The exchanges are a critical part of the BitShares ecosystems and I believe they should have a priority e-mail / contact details to help them resolve any issue.

Does such a contact method exist - if so let me know and I'll pass it on, and if not can something be set-up?