This bonus is not something Stake handle regularly. You are so lucky enough to received it on your account. The claiming part just becomes unfortunate.
Anyway, this is why I preferred a transparent bonus system to have a much fair bonus distribution. Discussing exclusive promotion that has huge rewards somehow makes us feel doubtful on Stake. Lol
On June 20 my friend sent me a message and said he got this offer deposit $300 + wager $300 for $60 cash bonus but unfortunately the email was sent 4 days ago so I said the email is expired because normally the promo is valid for 3 days but I say just wait a few days and don't login you know, the following Saturday he got a new email the offer is wager $600 for $120 bonus without deposit. The account has been inactive for a long time with Silver level, so actually i can say those who get this offer are the inactive ones while the bonus amount depends on the VIP level if Platinum+ I believe the bonus is $200 or more.