Your customer number or account number is printed in the blue box on the back of a catalog or above your name on invoices or special offers. It will start with your zip code, four consonants from your last name and three numbers from your street address. It should look similar to this: 13316SMTH204.
Please have this number ready when calling with questions on your account or include with any mailings. It will ensure accuracy and save you time when contacting us. Thank you.
If you need to update your address or credit card number please call our Customer Service at 1-800-433-7811 with your account number and new information or mail the information to MYSTIC STAMP COMPANY 9700 Mill St., Camden, NY 13316.