How do i contact jh hancock? We encourage you to contact us if you have any questions or comments. Call 1-800-395-1113 if you have a numerical contact number or are calling about a 401 (k) plan with under 200 employees. Send your questions and/or comments to [email protected] or call 1-800-333-0963 to speak to a client representative.Is the jh signature fdic insured? JH Signature is a trademark of John Hancock Life Insurance Company (U.S.A.) and is used under license by John Hancock Life Insurance Company of New York. NOT FDIC INSURED.How do i contact the life insurance service center? Life insurance service center (all states except New York) Phone: 1-800-387-2747 TTY#: 1-800-832-5282How do i contact jhinvestments? Please use the form below or email us at [email protected]. If it’s received before 6:00 P.M., Eastern time, we’ll respond to it by the end of the following business day. Otherwise, please allow for two business days for a response.