There is a new promotion by MetaWin for today only. Until 6 September 23:59 UTC it's Diceback Hour!
Deposit $10 using promo code DICEBACK and get 50% cashback on all real-money losses up to $100. This promotion is valid for only 60 minutes after you have made your deposit. You can only wager it on Metawin Dice.

You can read all promo terms and conditions below:
https://metawin.com/promotions/saturday/