I'm not sure how to contact them, except via their web site.  I bought one
for my mother to use when she traveled.  She never used it, so she gave it
back to me. So there it sits, in the box. It still has about 100 minutes on
it, but you would have to buy more just to activate it so you can use it.
since I already have a Verizon account, I've never bothered.  I suppose I
could list it on eBay, I've just never gotten around to it :(

I have a tracfone and have been pretty happy with them for the last
couple of years.

What type of phone did you get?  Do you have a digital phone and do you
have digital service in your area? Did you do the online voice mail set
up at tracfone.com?  Those would be my starting questions.

1-800-867-7183 this is the customer service number to Tracphone, daytime
hours, and you will have to go through the d**m automated answering system
to get to talk to a real live person. I had the same problem and they fixed
it very quick.