Free $10 Slips Bet Credit - New Offer

Make or log into your account
https://slips.com/login
Go to your profile page
click promos
click add promo
Enter code: UFCFIGHT to get $10 added to your account

Also try to add the following promo codes if you didn't last time : BETS10, VEGAS10, 10TO1K, and BLACK10.