Rather than reporting the scam to Aw, I would've made another booking using a different name/mobile number and then lamped him!
I don't necessarily disagree but it wouldn't be my top priority....
1. Protect myself (Get the fuck out of there)
2. Warn other UKP punters (OP did this

)
3. Reduce the risk to other punters (OP did this by getting the profile removed

, but another will be along shortly)
4. Reduce the risk to myself by doing a few simple upfront checks (Image check, UKP reviews/comments, phone # check, x-check AW reviewees, ask UKP for opinions etc.)
5. Revenge