Charity Bingo is on the 15 Network. They used to donate £1 to their charity of the month for each deposit of £20 or more but following their migration to new software there is no longer any mention of charity donations anywhere on site. Not recommended if you want to be sure of supporting a charity while you play!
Charity Bingo’s £1 donations were made via a JustGiving page so it should have been easy to see how much they raised (it tended to be around £500 a month).
Disappointingly, something went wrong with the links to JustGiving when the site had a redesign back in 2014, and more than a year later it had still not been fixed. The links from the bingo site more often than not pointed to the wrong charity and it was often not clear what the current charity was, how much was going to be donated to it and when, or when the charity would be changed. They did seem to be making quite a few donations – £1774 to Keech Hospice Care for October – December 2014, for instance, and £684 to the Nepal Earthquake Appeal for May/June 2015 – but the information was never as readily available as it ought to be. The last donation was to British Skin Foundation for July/August 2015.
After that a page was placed on the Charity Bingo site saying that they would set aside £1 from each deposit to go into the Charity Bingo Heroes Pot, and would make a donation of £500 – £1000 to a selected charity from the pot from time to time (so players no longer knew, when making a deposit, which charity the £1 would end up going to). Unfortunately the page was never updated and more than a year later, still showed the £320 in the pot that was there 4 months after the change. After an upgrade to the new Jumpman software the page was gone with no indication as to what had happened to the pot.