Subscribe to updates for Multiple Payers - 100039, BCBS MICHIGAN - 270 - Due to scheduled maintenance Eligibility and Benefits Inquiry transactions will be unavailable Sunday, February 22nd from 1:00:00 AM EST through 7:00:00 AM EST Sunday, February 22nd. via email and/or text message. You'll receive email notifications when incidents are updated, and text message notifications whenever Payer Notifications creates or resolves an incident.