I tried calling, several times over many days, different times of the day, the main number, 800-642-2646. The message said the best way to contact is to email, which is the message also stated on this website. I did wait on the phone until the voice message stopped and it attempted to transfer to a person, but no one picked up on any of the times I tried calling.
I sent a message through the NGC website's contact page on 5/7/20, and again on 5/8/20, no response.
I sent an email to service@ngccoin.com on 5/11/20, no response.
How can I get in contact with anyone at NGC?
Regards