[Closed] Opticians in the house - what if glasses don't 'fit' ?

Picked up a new pair of specs from my local optician on Sat - they have been our family optician for years and they are very good (my wife works at Eye hospital and they are connected with agreat reputation).

Anyway, what I should have done was either get my oldish light flexon Nike's reglazed, or bought new identical frames with new lenses....what I actually did was pick a pair of half rimmed frames and get the new prescription in them. Prescription was hardly changed, but old specs quite scratched. Spares, which I use on the bike still ok, and close enough to be fine to wear. So the problem is these new ones are not comfortable - heavy, digging into my nose and ears - went today to get them adjusted, but still crap.

So going back tomorrow to look at options - what I would 'like' is to get the new lenses recut to either fit one of my old frames, or get a new frame same as my old Nike one. Unfortunately due to my prescription the lenses are well expensive, and ultra thin etc, so come in at over £100 each.

I feel a bit guilty though, but I think I remember someone on here saying that the Opticians aren't actually out of pocket if they have to do alternative specs due to a poor fit ? I am quite happy to pay, but having forked out over £300 on a pair of specs that don't actually fit my face I don't really want to write it of as a bad buy...