Can anyone tell me why MEARS would be so unresponsive to my e-mails?

Here's the story: A couple of months ago I submitted a Chuck Muncie Chargers jersey for authenticating. It came back with their highest grade for a pre-1987 jersey - A10. It is now documented that I own a 1980 game worn / game used San Diego Chargers jersey of Chuck Muncie. I listed the jersey on eBay with the hope of getting some trade offers / or cash. A couple of knowledgeable Charger collectors questioned me about the jersey. There seemed to be some issues with the tagging. I pulled the jersey from the auction and tried to contact MEARS for clarification. I've sent a total of 4 e-mails over the last few weeks and have not received any reply.

Has anyone else had similar issues with MEARS?