In all likelihood you don't tell the anything.
  • It's none of their business. Upholding your right to do with your property what you want is noble.
  • They probably won't ask. You are probably way to poor for them to care. There are multimillionaires withdrawing everything and traveling to Switzerland or gambling everything away after a cancer diagnosis
  • Even if they ask, just lie. You're making a consumerism purchase that has been your lifelong dream. You've had a religious awakening and make the world a better place. Whatever.