"Yeah. They give you a chance to hit the games bonus round/big win modifier most weeks with 5 spins. You aint really getting free credit, as five spins pays about £0.14. I usually lose outright, but I return each week, as they rub it in my face... "5 spins"... they'll tell me. Finally I won though. This week infact. 5 spins ended up taking me to the bonus, from which I won a good amount of money; met thew wager and withdrew £50. Not bad at all for free.
I easily wagered £50-100 on the slot too, so hopefully later on they'll award me the extra 100 spins. Just not 100% exactly how much I did play/wager. We'll see. ;p"