Terrible Customer Service

My DDJ 1000 SRT which is less than six months old started having a problem freezing mid song. The jog wheels become unresponsive and the only way to regain use is to shut down the program or unplug the controler. I reinstalled the drivers and analyzed my entire library in serato. It continues to have the same issue. I sent it in for repair on March 2nd and was told the part was on back order with no time table for delivery. This is unacceptable, I have gigs I have had to cancel and additional gigs I have had to turn down because I have no time table for my deck to be returned. Every time I call customer service they take my same information and say someone will get back to me within 48 hours. This deck was 1299.00 and it is sitting in a warranty repair center and I can't get anyone on the phone to discuss my issue. I have requested a phone call multiple times.