We were recently notified that people offer A7 Pro at a very cheap price - like $400 - here on the forum or in PMs to forum users. After paying, you receive the cracked V7.05 beta version, patched to a different version number. It's a little expensive to pay 400 bucks just for the start message "A7 Pro" and an otherwise not working software.
Thus, when you get such an offer, become suspicious when the price is very low or when the seller can't provide a purchase receipt. The average second hand price of a real A7 Pro is in the $600 range, and all legal owners have a receipt with an order number. We have records of all A7 Pro owners, so before paying, please contact Support for verification!