U was fairly easy for me, as it was a café I ride past every time I go through Llantwit Major, which is at least a couple of times a month.
X (or EX) is trickier. I thought there was a café expresso (that is what it calls itself on Facebook), but the name on the café frontage is actually café espresso
There is a Café Express in Port Talbot, that I have actually cycled past once, but that is quite a long day out. Otherwise, I suppose I could use a Pizza Express, but that somehow doesn't "feel" right.