Yup, looks it they played the usual "oh, we have very little time and space available so pay us all the money and go away" thing. I don't fall for that stuff.

You are definitely not making any mistakes, the unit has certainly been used or at least used as a floor unit. There's no doubt about that.

Don't seadle for anything less but a refund or exchange of the unit. Even if they offer to give you some of the money back and pay for the repairs. No way.

-ED-
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A gentleman is one who never hurts anyone's feelings unintentionally.
- - - Oscar Wilde