Go online at https://www.costadelmar.com/repair and complete the repair form and mail your glasses in for the repair. I just received my glasses back for the 2nd time, unless it is obvious damage due to neglect, they will normally repair them under warranty for the $11.95 fee paid up front. The pair of Corbinas I just received back were brand new and not my old pair due to the model/design change. My rubber nose piece and ear pieces were falling apart.

Expensive upfront, but well worth the money. I sent my pair back on 10/18 and received them last Friday, 11/25.