w3s

Six months ago my back glass was broke out and I had it replaced at Safelite auto glass. Last weekend it happened again so I took the truck back in for another back glass and this time they are telling me that they cant find the right glass.
They cant remember where they got the replacement the last time and every one they try now has a different frame pattern. My truck has a couple of 12 inch tabs, and there glass has holes for several 3 inch tabs.
Has anyone delt with this before on a 2001 4runner?