Been using 888 for about 2 years now and their withdrawal times are all over the place tbh. My last cashout of £200 took nearly a week to process, but a smaller one (£50) went through in about 24 hours. I think they prioritize smaller withdrawals to keep casual players happy while making the bigger winners wait. Classic casino tactic to tempt you into cancelling and gambling more. They’re definitely reliable in that you’ll eventually get paid, but their “3 business days” processing time is more like a minimum than a guarantee. Stick it out mate, your £150 should come through eventually.