Riedel Sommelier series issue

Have a sommelier series glass (the handblown lead crystal) that we purchased direct from Riedel. Have sent a couple emails to customer service on their website and I get no response. One of our glasses has the tiniest chip on the inner rim of the glass that came loose simply washing with a rag, no crack. Anyone have any contacts?

732-346-8960

Phone number for NJ offices.