Playing the devil's advocate here...
Post some pix of the 18+ year old models that you have documentation on, but don't want to provide redacted ID's of (in order to satisfy the requirements of the people that process your transactions).
While I also question authority on a regular basis, and I understand your protectiveness of your models, Rand from Epoch appears to have validated the request from his company (it is not a rogue stalker employee seeking your proof of age on specific models for nefarious purposes).
Put another way, Epoch appears to be doing it's due diligence in order to ensure that they can continue processing transactions on behalf of adult industry companies.
While we're on the topic, what is your rationale and justification for shooting porn in countries where pornography is illegal?
ADG