In Georgia the age of majority is 18.
http://minors.uslegal.com/age-of-maj...-majority-law/
I can see how he would be concerned with a 16 year old bidding, because generally a 16 year old in Georgia can void contracts.
Remember this is a business forum and I can totally see his point of view.
So he asked for a call from your parents which would be totally appropriate under these circumstances.
I think had you seen his point of view and acted in a mature way and maybe just had your parents call him, everything would have been fine. People make their livelihoods this way, they have a right to assurance of being paid under such circumstances.
There are a lot of smart younger people on this board and I think that most would have been honored to talk to Ben Siegel. With a little flexibility and maturity, trying to see another's point of view, you might have formed a friendship that would have helped you immensely in the reptile world.