Participants with questions should contact the Service Center at 877.644. Contact them Monday – Friday, from 8 a.m.Forms and Help. Forms. Help. Call 1-888-867-5175 Email us. Now is the time to GET STARTED. Your pension and your Ohio Deferred Compensation account are here to provide you with retirement income when you stop working. Need more information about deferred compensation plans? If you would like to confirm or update your beneficiary information, please visit our website at Philly457.