There's a couple of things you need to be aware of,

1. Your not alowed on the premesis becuase your under 18, but thats the clubs problem not yours(you cant get done for being in there)

2. The main problem deppends on what u win, if u win a residency, then u cant legally get paid for it, and the club wont let u in.

But saying this, if you do sign it, and you are let into the comp, no-one will prosecute you, its not worth the effort. And if you win the comp, at least u will get ur name about!