I ordered a pair of glasses from this website which when they arrived were no good - despite paying extra for varifocal and extra thin lenses I couldn't focus or see at all but no problem I thought as the company offers a "no quibble" "90 unconditional" refund service. So I emailed them explaining the problem and sent the glasses back. After 6 weeks of chasing I finally got a reply to say that the glasses had been checked at the laboratory and as they were made to the prescription I had supplied I wasn't entitled to a refund and they were going to send the (useless) glasses back to me!
I emailed back quoting their "no quibble" refund policy etc and they said this only applied to single lenses not varifocal so again no refund.
I have since paid a lot of money for glasses from another optician using the same prescription and they are perfectly fine.
So I guess the bottom line is if you have more than just a standard prescription do not use this website.