That is according to the tracker, and It seems UNLIKELY to me that this is is a case of transferring the the ticket machines from the coaches to two unidentified vehicles, BUT, I thought the AST3 contract required a small vehicle , (- but was a coach today) ??
IF this usage info is correct, it MIGHT have been a result of having 8 single-decker buses "Not-in-Service" yesterday, and 6 today (??)