Can I transfer my net10 phone to my tracfone account?

I have my Tracfone SIM in the new phone I got. I didn't notice it was a Net10 phone until after I got it. Three Tracfone people assured me I could transfer it back to Tracfone. Now they are saying I can't. I wanted my huge number of Tracfone minutes and double minutes contract. I would have sent the new phone back if I had known soon enough. Where is the phone locking anyway - on the SIM card or elsewhere? Thanks.

via Forums de téléphone cellulaire (en français) http://cellphoneforums.net/fr/general-cell-phone-forum/t365341-puis-je-transf%C3%A9rer-mon-t%C3%A9l%C3%A9phone-net10-sur-mon-compte-tracfone.html