I have quite neutral experience with Raffles. I go the impression that Lottery types of gambling are not that popular and as fun as 'direct' betting or gambling.
Because odds are too low and you have no influence over your game other that initial signing up moment.

Anyway if that promotion is still running, here is my address: 195ebhrFSroi892wUKV4MJd49ikmU4Vd9C