Will only work for NEW coral sportsbook members.
going through top cashback you can earn £31.50 (believe it's £30 for non premium members) when you deposit and wager £10. So even if you lose the bet you still make £20-£21.50. i did mine on the 13th (so got the £2.50 bonus too, wahoo!), placed a very safe in play bet to get my tenner back, and my cashback tracked this morning (I will update this post once it gets confirmed & payable too).