Foxy is one of my absolute favourite bingo sites and they have an incredible welcome offer at the moment. All you need to do is deposit a tenner and they'll give you a whopping £30 bonus to play with.
The most I've won with a free bonus is £162 and I bought myself a TV with the winnings. What a great day that was!
New players only. 18+ Min £10 deposit & £10 wager. x4 wagering requirements apply to Bingo bonus, expires in 7 days. 7 days to meet wagering. Excludes deposits made with Skrill or Neteller. Further T&Cs apply - see Foxy website for more details.