Cross-browser testing with BrowserStack

We have a BrowserStack subscription. We have limited seats (25 at the time of this writing) and can purchase more as necessary, but would like to aim to spread them through the engineering organization as evenly as possible under the assumption that each team may have only a few people at most who will need to be doing cross-browser testing anyway.  It gets expensive pretty fast.

David Joy (Deactivated) is the administrator of the account and has set up its billing with finance. 

Adam Butterworth (Deactivated) and Albemarle (Deactivated) are also administrators and can help you claim a seat, but can't seem to get to the billing part.  

Kara McKelvey (Deactivated) has set up invoiced billing for our account.