I think this bonus amount is based on user VIP rank only (like the pre-monthly bonus). There will be more bonus from Stake to celebrate the partnership with Watford FC. Use this link to claim the bonus:
https://stake.com/?bonus=WatfordStakePartnershipThanks for the Watfor + Stake partnership bonus link. Been keeping an eye out for it since it was first mentioned on the thread as I'm yet to receive email about it. Btw, after completing the captcha, I got an error that says "BonusUsrCode not found" - dunno what it means but I think it's for a select few maybe based on VIP level or some other criterion.
Can anyone else give this link a try and let me know if it works.