Also, contact the retailer they were purchased from - you didn't state if you were the original purchaser. You should receive support independent of being the original or second hand purchaser / owner.
If you can't get the support your looking for, tell them you will share this experience on the internet. If they still will not provide you support, let us know so we recognize the lack of support provided.
Too bad - this past year I went to a intimate demonstration for a GamuT system which had the company developer and CEO fly in from abroad. Excellent event and very good performing gear - although the set up wasn't how I prefer (I prioritize imaging over bass response).
BTW - Pass Laboratories will provide detailed information, support and service on ANY product they've made to anyone who calls for it.