Ok think I'll stay away from bingo! Still getting my head around this.
I may be overthinking but I basically understand that you are putting a back bet against a lay bet to make the betting mostly risk free, and use this method to turn free bet offers into cash. What I want to know is, can you turn it into more than the value of the free bets eg make more than £20 from £20 worth of free bets? How does that work? What difference do the odds make - why do they advise betting of odds from 2-5 then odds of minimum 5 etc? (This is using oddsmonkey). I'm sure one odds calculator was giving me a £25 profit on a £5 bet when the odds were in the 20s, but I would have needed more money to cover liability in my betfair account. Is this risky?
Also, if you 'win' on betfair do you actually get more back than your stake? Sounds silly but I'm sure one of mine won but I didn't get anything extra, just my stake back. Hence I've increased my purse on coral but have had to top up credit on betfair.
On the plus side I have made £15 profit so far on I think £15 of free bets so something is going right!