Top cash back: www.topcashback.co.uk/ref/member170984127406
(Get £5 extra on your first £10 by following my link)
I did the mecca bingo sign up, I made over £100 on their sign up offers and £11.25 in cash back. You'd be extremely unlucky to come away without at least your £10 deposit back (plus £11.25 cashback). PM me if you need a link to strategy, although I wombled through.
Quidco
£10 extra on your first £5 cashback if you go through my link: www.quidco.com/raf/8955249/
By far the most ridiculously profitable one on Quidco is the £50 for gala bingo sign up offer - but others are worthwhile too.
OhMyDosh
£1 welcome bonus when you sign up on my link:
ohmydosh.co.uk/validate/refer_a_friend/welcome/218557?keyword=referred
Although the bonus sounds tiny OMD is actually my favourite of the three. It's got me things like a razor with 4 heads/shower gel/shave gel/ after shaving balm for net 50p, a £7ish profit on lotto tickets, and several offers that didn't cost anything to do.
They're all free, so sign up to them all, and come and join us on the earn £10 a day and matched betting threads 
Okay, I give up on how to get a link to work - copy and paste, if you will! 