My advice is just to ignore these guys. ANY communications you have with them just encourages them to keep after you. The odds of police catching up with this guy (or any of these relatively low value scams) are slim to none. Don't waste your time, energy, (and boiled blood
) responding...ever.
You can notify Homeaway (I would), but the scammer will likely change his Homeaway log in and profile 10 minutes after he gets banned by Homeaway.
Same with phone scams. I only use a cell phone (no land line). If a call comes in from a number not in my known contacts, I don't answer it. If it is truly something that needs my attention, the caller will leave a voice mail and I can call back. Talking to phone scammers (even if only for long enough to find out it is a scam) puts you on a priority list with them.