Call Sign Maverick:-
As far as my knowledge goes on the subject, Air1Charter have the yay or nay on the Rooney aircraft (G-OROO XLS,G-CROO CJ2+,G-MROO CJ2), the aforementioned aircraft are with Hangar8 under their AOC and all very happy with the arrangement - with regards to the quoting/mails etc that you mention being received under various banners, not privy to the set-up on that side of things but nothing untoward, at a guess it may be that requests are sent via varied sources to obtain quotes etc. ??
Oh, just to clarify - definitely shouldn't be anything received with the EBJ name on to my knowledge - long since dead and buried !!
Hope the above is of help,
F/O