The server added a 15% gratuity charge to my bill without informing me, so I left a tip on the total as usual. When I noticed the extra charge the next day, I contacted the pub and didn't even receive an apology - the person I was in touch with (presumably a manager) seemed to have no interest in keeping my business. Considering there is no shortage of pubs in the neighbourhood, I certainly won't be going to this one ever again.