Before joining, check the site on the UK Gambling Commission register and read...

https://andysbestchat.lucialpiazzale.com/how-do-i-compare-withdrawal-methods-between-betting-sites

Before joining, check the site on the UK Gambling Commission register and read bonus terms: licensed operators have a 10x wagering cap. Check mobile usability and withdrawal rules too; a headline offer may be less valuable than it looks.