<prompt> Human: A few years ago my grandparents gave my mom some foreign currency, Vietnamese Dong I think, as a birthday present. Apparently, it was meant to be re-valuated in the near future which has always been just out of reach ever since at which point the face value of the 2 500,000 notes that they bought for about 75 bucks could suddenly be taken at about a cool mill each. Then there would be some form of que to cash in based on your area code or some mess and every one who was genius enough to throw money at this scheme is a millionaire because vietnam just poofed itself into the first world. Questions I have for you guys are: Where is this coming from? How can I if I need to, shes not living for it as far as I can tell but it comes up every once in a while in a When I finally win the lottery kind of way disprove it? And how much damage other than false hope can a middle aged woman with a 400ish credit score and no income not because of this as far as I know do to herself if she thinks shes about to make 2 mil out of nowhere for nothing.  <response>: What will really happen is that these notes will be replaced by the Vietnamese government. All notes will then need to be exchanged for new notes. After that, the old notes are worthless.The notes youre talking about are probably already worthless. 