If you are in the US, each state has a Department of Human Resources. Within that department is an Adult and Family Services section, with a Protective Services arm. It might be called something a little different in each state. BaseballGal has given you some good links. What your grandson is doing is against the law. The fact that he's stolen from you is very illegal. You need to stop him from having access to your bank account. Contact your bank and have his name removed from your account. If he is not on the account but is ripping you off anyway, that's a form of identity theft. If you let us know where you are, maybe we could help you further. If you don't want that advertised here, send me a private message and I will try to help you sort it out.