CGT have nothing to do with this, there are set of rules that needs to be followed in order to not get scammed, and will someone follow those rules are up to them. Rule number 1 is to secure whole payment in front so that you can't get in situation like this. Cgt can make (maybe they should) this mandatory but then business flexibility will be lost, because a lot of people here have regular customers, so this flexibility makes life a bit easier for both. A lot of people here doesn't know how project system works so they should ask before they decided to go for an "adventure" of doing work for free, other knows very well how it works but are still thinking that they will get better "relationship" with a customer (customer won't look for other designer) if job is paid once it's done which is wrong thinking. The best thing to do in order to avoid scam is to avoid customers who doesn't want to pay in advance. There are scammers who will pay, in this case cgt support will deal with those.