Bingo Whoring?

[kimchi]

I've been whoring Littlewoods Casino for a year now and received an email about a 100% bingo deposit bonus up to £125 with a wagering requirement of 10x the bonus.

So, if I were to wager £1250 on bingo, what would be the EV of this?

My girlfriend's sister tried William Hill Bingo's promotion (buy £20 worth of bingo cards and get £20 cash back) She bought approx 300 tickets (5p to 10p each) and didn't win a penny!

Does anybody know the house edge here (cryptologic)? I've no idea about bingo.

[Pokerpun]

I was thinking about this too - I also whored Lwoods but have not got that email, I dont know the house edge in bingo - presumably around that of the worst slots?