It takes a while to get a response from corporate. Did you mail it to Dallas? or to their regional corporate address. If you mailed it to dallas there is an unbelievable chain of command. it has to get sorted and separated to the market its directed towards them their head customer service have to respond to issues from mailings, BBB, and phone complaints that have escalated. and there are usually only 3 people in charge of handling these situations from each market. since there are literally thousands of dealer complaints it fair to say it may be a while before you hear from corporate.