REI replaced my Volkl's with a new identical pair when they inadvertently drilled all the way through the ski while mounting the bindings.
They screwed up, admitted it, and then fixed it to my satisfaction without me even having to raise my voice. Still have and love those skis.
In my experience REI tries hard to to the right thing.
Good luck, rickp
As they should have. What happened to you was poor workmanship. IMO in the OP's situation, If the sticker was on the ski REI should answer for what happened. But it was on the shrink wrap and the OP didn't point it out. As I said in an earlier post, I don't believe it is the tech's job to study the shrink wrap for special instruction and he mounted on the line.
On the other hand, La Sportiva did a shabby job by putting the sticker on the wrap and not directly on the ski. Shame on them.