Wondering if you might be letting the rope all the way out and not using the cleat to hold it. I could see how the force and the angle that the rope has to contend with would wear it or cut it against the plastic.
It was attached to the proper place. Took it off to take that picture.
It 's really a new kite, bought in November with max. 5 hours of use.
Well, the main problem of buying a kite abroad is that the local representative of your country won't give you a new part for free, still it is a Slingshot product...