Hi,
Have you tried promoting any of the UK sportsbook brands who have casinos?
UK punters like playing at brands they can trust, whether they’ve seen them on the high st like Laddies, Hills or totesport or have a strong sports-ground presence like 365, betfair and dare i say it totesport :wink-wink
I’ve done some campaigns with city based sites in the past and although conversions weren’t always great you can certainly catch the odd big fish and we really look after our big fish and keep them playing. We also offer cross revenue share so if your traffic fancy a punt on the races or the big match you can earn off the back of that too.
Happy to PM you with further details if you like,
Cheers