[mothered]

the way the online person said this is unusual and wants me to sign the paper (when i know others who dont sign and get the refund straight away) ive decided to apologies and said a friend played a prank on me and gave it back when they figured out  was going to sign the paper and im going to return all the items like a week later thanks for the support guys

Very wise move.

When you experience similarities In future, not dedicated to any specifics, do the very same and not put pen to paper. A legally binding document, affidavit, stat dec or otherwise, has you tied and can have significant consequences If found guilty of your actions.