they called but didn't leave a messdage or talk when i answered

To paraphrase your own note, No one does business with a Company which makes nuisance calls to find out if people WANT or NEED their services.     Do you realize how many people you offend and how much of their time you waste?    It's easier to move over to calling someone who has ASKED for your services rather than be nuisance callers.

Received a phone call picked up and said Hello and dead air on the other end. When called the number back it was saying the magic jack customer is unavailable to take your message as it is full. Jan/7/2014.

I blocked this number immediately. Call today but did not leave a message. Could be telemarketers.

they called me asking about credit cards and credit

EXCELLENT INFOMRATION. I have reg our number and it has helped.
thank-you.

I was contacted by this business and was dumb enough to give up my credit card info. Called the credit card company immediately and the canceled my card and sent a new one immediately. Do not trust this business.