So when you type in google if Gazelle is a scam the first thing you get in search is http://www.gazelle.com/is-gazelle-a-scam and it says it's BBB Accredited? Haha So any one can have a business and go to the BBB site and try to say there Accredited well, there only Accredited in boston where this place is founded, and also the review is by CustumerCare@Gazelle.com. Now if you go to the real bbb.org site you see this same review, now look below it? if you scroll down it clearly states that Gazelle is under review in every other state and is NOT Accredited by the BBB.
(don't use gazelle if you have already been ripped off file a complaint with the bbb, and get a lawyer, trust me others have!)
Ps your welcome and just remember research before you get scammed it doesn't take much to see threw the thin lies!