If you know you have treated them appropriately then take them back. . My feeling is that this shouldn't happen unless you are sliding in every run on really hard tracks.
Anyone know how to repair this?Spray paint?
@RF Mate i don't think spray paint would be good but depending on how extensive the damage is check out the products that plastidip do. Google it. Rubberised paint. It might not stand up to a good dive but i think it could make a pad look very respectable, and if it gets damaged, just peel it off and start again.