Lenscrafters trying to say they did correct prescription. I think I would know if I had the right prescription San Mateo, California

I went to the Lenscrafters in the Hillsdale Mall in San Mateo while I was on other business in California. I live in Alaska. I made that clear to them.

The first pair I received while still in California. I was able to try them on in the store.

I put the glasses on and immediately knew their was a problem. The right lens was blurry.

They tried to say that they probably needed to be adjusted. I let them adjust the frames, same problem.

They looked at the prescription that was on the order and on the paperwork for the glasses. Prescription done by the lab was wrong.

They had to order another pair. Unfortunately, I had to go back home. They would have to ship them.

I received the glasses, tried them on, same problem with the right lens, blurry. I called the store to let them know it was the wrong prescription, they looked at their paperwork and said I was wrong, it was the right prescription.

I explained the problem in the store, the precription from the lab had an incorrect number. I was having the same problem this time, but they kept saying it was the right prescription.

Then they tell me I can ship them back to them, but I have to pay the shipping. They screwed up, but I have to pay more money to have them fix them? What kind of customer service is that?