Leather Ankle Strap Court Shoes

I have difficulty buying shoes as my shoe size varies so much, depending on the brand. In most M&S shoes, I'm a suze 3 or 3.5 but in other makes it varies. Last year I bought a pair of these Dune shoes in black in a Dune shop. When I saw these on the M&S site, I had to get them. They are well made, comfortable and look lovely when they're on. I couldn't find the same shoes in my 2 large department stores and the Dune shop I bought my last ones in has closed down. Thank you M&S.