Came down to Florida from NY to repair my fathers 335. He has fault 30ba internal DME failure. Found website n54dme.com that does the repair. I made the purchase yesterday thru the website and made payment on PayPal. I ran to the post office to next day it to Texas with the hope I can get the repaired DME back before I have to fly out. I emailed them 3 times with no response. Now I just get tracking info email that they tried to make delivery but and unsecessful. Does anyone have a phone number I can call? Thanks !