Probably from an individual that isn't meant to be handing out such information. There's no reason to keep hounding people for that if they aren't willing to say who it was.
In that case, there's no point in saying it at all.
I could just as easily say that Hull Trains are looking to employ redundant 365s and loco haul them the last leg, because that's what I half heard from some guy on the internet. Unless you can cite a source (or explain why you can't), it's hard to believe.
I'm hounding because I want the truth.
Also because I don't believe Stagecoach have released any details of their bid (can't find any other info on any railway forums/groups I'm connected to).
Also because if they have, I'd like to know what else they planned.
Also because if they didn't release any details, why choose this single one?
It's not about calling the OP out to be a liar, it's about being interested in other information that the OP may not have written but I might be interested in.