You cant bid on them unless your a pro$$ie and your looking to get a length in the bum
A reverse booking is made by a punter on AW. They pay 2 quid to place a listing on AW which the pro$$ie can bid on. I.e you place a reverse booking for a 2hr outcall at 220 quid and you detail the kind of pro$$Ie you want to fuck and services you require
Hope this helps.