I had the opposite problem for years, I’ve got quite a big, squarish face so need something bigger with a cat eye shape to look remotely ok.
The moral of this story is that opticians selections are never the best.
Like others, I now buy online. I’ve used goggles4u, glasses direct, firmoo, vooglam and probably a couple of others over the last few years. Never very expensive, always well made, and I’ve never paid import taxes.