there are a couple of new (or newish) sites from DAUB Alderney ltd (who have kitty bingo), called magicalvegas and spinandwin.
100% 1st deposit bonus, up to £200 25xD+B (50xB) the bonus is sticky and the maximum withdrawal is £500
which is bad enough. but the 2nd deposit bonus is 30% upto £300 25xD+B (108.3xB), again the bonus is sticky and the maximum withdrawal £500
the 3rd deposit bonus is 50% upto £500 25xD+B (75xB), yet again the bonus is sticky and the maximum withdrawal £500
therefore, if you were to make deposits of £200+£1000+£1000 =£2200 to get the maximum bonuses, you'd only be able to withdraw £1500
so even if you got through all that wagering you'd still be down £700
100% 1st deposit bonus, up to £200 25xD+B (50xB) the bonus is sticky and the maximum withdrawal is £500
which is bad enough. but the 2nd deposit bonus is 30% upto £300 25xD+B (108.3xB), again the bonus is sticky and the maximum withdrawal £500
the 3rd deposit bonus is 50% upto £500 25xD+B (75xB), yet again the bonus is sticky and the maximum withdrawal £500
therefore, if you were to make deposits of £200+£1000+£1000 =£2200 to get the maximum bonuses, you'd only be able to withdraw £1500
so even if you got through all that wagering you'd still be down £700