<prompt> Human: My grandparents 80 and 85, Georgia get phonecalls from the Department of Treasury letting them know they have won xxx, xxx and all they need to do is send 1000 to some person for taxes and then they will receive the money.To my knowledge, they have sent 30k in total.The situation at hand: my grandma got a letter saying she won 4.5 Million from Mega Million and she has to put up 150k the lottery fund is putting up 250k on her behalf and then she will get 4.5M. She also is told she will receive a 2017 Mercedes. She is awaiting a loan for the 150k to come through.She is keeping this as secret as possible from her two children 50s. I do not know what to do. My grandparents are okay financially, but this loan would be an extreme hardship.Things we have tried as a family:- blocking phone numbers on their phones- calling the scammers ourselves- showing them Google searches that indicate the phone numbers belong to scammers- having friends in the police come to their house and read the letters and give their opinionClearly nothing is working. Any advice would be great, thank you.Assistant: Honestly, this sounds like it might be crossing into the realm of mental illness. You really should tell their adult children, and they may have to take steps to get control of the grandparents assets before they end up homeless.Human: I do tell my aunt everything that I learn, but Im afraid that once my grandma figures that out, she will stop telling me things too. Theyre definitely getting old and I wonder about dementia  <response>: This is called elder abuse. You MUST report it to not only your family, but also the authorities and their bank. Please do not wait any longer. 