I recently had to contact NGC for some questions, and I found their phone number to be very helpful. I would be happy to share the number with you, but I want to remind you to be careful of fake phone number for verification that sometimes can be posted online. Just check out their official website. Also, my experience dealing with NGC was great. The customer service representative I spoke with was very knowledgeable and patient with all my questions. They were able to assist me with all the information I needed. I hope you have a similar experience, good luck!