I had a similar problem with Specsavers .I chose some frames thinking they looked flash and modern and they put the lenses in etc ..
Now ..I'm very short sighted ,with astigmatism and opted for the whole shebang ,varifocal ,thin lenses coating etc but when I got them I couldn't focus properly with them .
The frames were too narrow for my field of vision .
My fault really although I did think that they ,being the experts ,could have said that perhaps the frames were not ideal for the prescription I needed
I took them back after persevering for about a fortnight and to be fair they did change themfor another frame but I had to pay even more ! .
I didn't have the nerve to ask for a refund as I chose them in the first place ,but felt that could have been more helpful in the choosing of the frames in first place too .
I don't go to Specsavers anymore .I find all the hard sell offputting .
.