cheers
played 3x 50 cents, dead spins so raised to 1 eur and won 48

lowered bet to 0,5 to wager and finished with 55 eur. Its odd slot, had 4 sets free spins and it paid 27x, 14x, 9x and 1x (yes 1x), but base game was playing ok so theres that. 55 eur is awesome for no deposit bonus so not complaining, but i kinda always want to cashout 100 there because if they bonus ban me i want to go out with a bang, if that makes any sense. lol
Important, William Hill related edit:
Id strongly advise against using William Hill links for their bonuses, they are known for bonus banning people who use bonuses that way (aka bonuses they werent supposed to use). For WH its one simple rule, if bonus shows on your games/vegas/whatever page, use it. If you cant see it there, its not for you and especially this bonus with max cashout of $20 is not worth the risk imo.