I see you've learned a couple of things in your life, my little vulgarian. Sorry to inform you that you appear to have managed to do it wrong in each case. My width is medium, which is an F, I think, in Church's. The meermin last is narrower, and these particular shoes are size 7 US, not 7 UK. But I am not going to waste my time arguing with you or anyone else here. It'd be equally stupid, albeit slightly more productive, to teach my cat to speak French. And I will never waste my time trying to ascertaining that in their case, size 7UK is actually size 7US, or 3 1/2 Mongolian, or whatever. I just don't have that much of spare time on my hand. And I don't care about the money that I lost. It's peanuts. So I won't even bother to try to return them. Will donate this award artisanal misconception to the local housing works thrift shop around the corner.
Well, if you write "I was unfortunate enough to have purchased a pair of their brown tassel loafers listed as size 7 UK. I have 5 pairs of Churches all in size 7 and 3 pairs of Loakes, also in size 7. The loafers are smaller", how should I be able to figure out that you got size 7US? It's easier if you write that, instead of something else. Though I've never heard of Meermin writing out US-sizes in their shoes. Regarding width, like I mentioned before, standard width in one brand doesn't have to be the same standard width in another brand, and even within brands lasts described as standard width may vary in actual width.