https://www.casinomeister.com/forums/threads/microgaming-casinos-leaving-uk-market.63115/?t=63115
You might want to have a read through the above thread Stevie.
For the record, it seems that I got the same e-mail myself a few hours ago. It looks like most of the Digimedia casinos, which includes the five Fortune Lounge casinos and the four Jackpot Factory casinos (of which All Slots was one), are all departing the UK market. I also think Redflush may be departing. However, 32Red Group will almost certainly stay and as far as I know, Casino Rewards Group is intending to stay too. Unfortunately, there has been a lot of rumours and no cold hard facts. All Slots is the first casino I know that has actually bothered to inform me of their intentions to leave the UK market. Hopefully, by the end of this month, the picture will be a whole lot clearer.
As for Betway, I cannot comment, as I have never opened an account there.