Which has already been highlighted as unenforceable on a previous thread. It is a breach of consumer rights to enforce a policy like that, so they can't!
HERMITT : I guess your sig. explains your opinions, but have you used an Ion? Before bashing a marker and describing it in such belittling terms, try one...there are already hundreds of these markers snapped up in the UK, and the general opinion is that it is a good quality, good performance marker, and the throwaway "toy" term is just so much hot air from people that haven't been near one.