Wow! Shi@storm is a good description of the situation. You know what the rules are. You can play along by their rules or simply not acknowledge that they have any authority over you.
I would never agree to meet with the elders norwould I write a letter of disassociation. The elders are simply mid level cult leaders and do not deserve the courtesy of a reply to any questions.
You have some tough decisions ahead.
Best to you and your family.