code: public static void setPaymentsPrivacyUrl(String privacyUrl) {
  		PaymentSettings request = new PaymentSettings();
  		request.setPrivacyUrl(privacyUrl);
  		FbBotMillNetworkController.postThreadSetting(request);
  	}
docs: Sets the payment privacy Url. The payment_privacy_url will appear in
  Facebook's payment dialogs and people will be able to view these terms.
  
  @param privacyUrl
  the privacy Url to set.
  @see <a href=
  "https://developers.facebook.com/docs/messenger-platform/thread-settings/payment"
  >Facebook's Messenger Platform Payments Thread Settings
  Documentation</a>
  @since 1.2.0