That's not enough information to really prove that it's actually 2 years warranty from Sennheiser, I hope you realize. We need a why and a how are they an exception since Senn clearly states it's 90 days for refurbished. For all we know, the agent can be just spouting out information on the site.
Then you can order from headroom pay the 1500.00 and you can have your piece of mind. i believe Crutchfield but for the extra 400.00 get piece of mind