Extremely dissapointed!!

This os just a follow up on a previous review. After writing my review around a week ago concentrating vodacom who did not have a solution to repair or replace my Vodacom Tab after it started giving problems. I finally got a response today. Vodacom claims that they cannot repair my Vodacom Tab 2because the repairs will cost more then the value itself. They are not planning on replacing it either. My question?... Why do they offer a 2 year warranty if they are not planning on repair or replacing it?