Haha, my friend got duped into working as these 'salesman' before.

One day, he stole the whole stack of the gores dan menang papers and went to mamak and scratched all of them, all same one LOL

And their MO is very similar, ask you to gores, then pretend so 'excited' when you 'win', call the 'supervisor', and so on...

Their target is usually at suburns and those old folks who are easier to 'cheat'