More questions about Gazelle

Can I trust that the phone I buy will be in good condition and is not fake? i am interested in buying a new iphone,can I trade my old phone in toward credit on a new one Do you have a free return policy? if i order a iphone 7 plus will i come in the mail in poor condition do you offer insurance? This is the first time I heard about this site. I wanted to ensure that it was safe to purchase items from. Hello. If I send you a MacBook Pro without that charger, will that affect the offering price? Do they provide the option of returning if the item quote was lowered in any case? do u guys sell any new phones or are they all used phones? I am trying to cancel a transaction on Gazelle. I no longer want to sell my computer. How can I cancel this transaction?