What could he have mentioned to Bamber Zoso?
If your assertion is that the first thing he does after waking up due to hours of unconsciousness - then I suspect he'd have mentioned 'that'. Personally, I think he'd be more inclined to go looking for Sheila to see what she might have done while he was 'out'. The you have a problem of when he called Bamber, so I guess you have to make him do that first - what he allegedly says. doesn't make sense.