Nextpair Reviews 

I had a frustrating experience with Nextpair. First, their response times are very slow, it took multiple follow-ups to get any reply. When my frames finally arrived, they were damaged. However, when I tried to return them, my RMA was rejected because I had upgraded to Zeiss lenses. This feels like a loophole to avoid honoring returns. A damaged frame should be replaceable regardless of lens type. I expected better product quality and customer support. Would not recommend.

Glasses took almost twice the promised timeline to arrive, and they had been made with a laser etched logo from the lenses directly in the middle of the field of view.
BTW Please note that their generous return policy only applies to frames and lenses that they don't appear to sell.

Very poor customer service. No phone number; the online chat box appears, but no one answers. They only communicate via email.