Contact Us by Phone, Fax or Mail

Contact Retiree Assistance by Phone, Fax or Mail 

If CIBC Mellon administers your pension on behalf of your former employer, you may contact us using the phone numbers or mailing address below. You can also contact retiree assistance online.


  • North American callers: 1-800-565-0479
  • International callers: 1-519-873-2218


  • North American callers: 8:30 a.m. to 6:00 p.m. ET, Monday to Friday
  • French speaking and international callers: 8:30 a.m. to 5:00 p.m. ET, Monday to Friday


  • 1-800-678-0760 (within Canada)
  • 1-519-873-2100 (outside Canada)


CIBC Mellon Pension Benefits Department
P.O. Box 5858, Station B
London, ON N6A 6H2

Information we require if you call or write:

  • Your first and last name
  • Your phone number
  • Name of the company from which you receive pension benefits
  • Pension reference number (this can be located on any correspondence that you received from us)
  • Address, city, province or state, postal code or zip code
  • Last 3 digits of your Social Insurance Number (if you speak with a pension benefit administrator)

If you are asked to leave a voice mail, please include the following in your message:

  • Name
  • Phone number
  • Pension reference number
  • Former employer