Maybe you need at least gold to get the "special event" perk?
But yeah, they should've given you something for the survey...
I once become (GOLD) for over 3-4 month. Still zero, IMO nothing is different.
It's just increase the amount we are receive from taking the promotion in promotion page, no any message or anythings via personal message with the host. IMO, If like that better just send it by emails rather than personal message.
TBH, Deposit 80% is also just a reminder for us. Cause the bonus is always automatically appears in our account on week 3 or 4.