Great Lakes Сustomer Service

Phone:

(800) 236-4300
(608) 246-1700 (Local/International)

Hours of operation:

Monday – Friday
7:00 a.m. to 9:00 p.m. Central time

Note:
Make payments and get automated account information 24/7. Representatives are available during the hours provided above.

Email:

Click here to send an email

Fax:

(800) 375-5288
(608) 246-1608 (Local/International)

Mail:

Great Lakes
PO Box 7860
Madison, WI 53707-7860