Participants with questions should contact the Service Center at 877.644. Forms and Help. Forms. Help.If you have questions, contact Ohio Deferred Compensation. 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. For further information, the employee should contact our Service Center at 877-644-6457 and press 3 to speak with an Account Executive. Call 1-888-867-5175 Email us.