More Contact Info

Toll-Free Number:

(855) 889-7867

Customer Service:

(888) 434-0055

Investors/ Franchasing:

(800) 962-4284

Transfer Agent

(310) 482-5830

Fax:

+1312-601-2312

Other Info

Other Info (opening hours):

Hours:

Monday – Friday: 6:00am – 6:00pm (PT)

Company Address

Stamps.com Inc.

1990 E. Grand Ave

El Segundo,

United States

Claimbo.com is not affiliated, associated, authorized, endorsed by, or in any way officially connected with Stamps , or any of its subsidiaries or its affiliates. The use in this website and/or in related promotional print or video material of trademarked names and images is strictly for editorial and descriptive purposes.

Complaints & Reviews — Stamps

22 Jul, 2021

Resolved: To add payment method

Update by user Jul 22, 2021 The issue was resolved after 4 hours of phone calls today and threeCS representatives, but Andrew finally solved the problem. Kudos to Andrew.. Original review posted by user Jul 22, 2021 Stamps picked up thru Pissed; they tried to solve the issue but could not. So now I am trying to... Read more➤

Post

22 Jul, 2021

Add payment method error message

I cannot add a new credit card online. Error message says the number is incorrect. it is not. Your customer service numbers have been busy 100% of the time since I started calling you last July 12. please help. and don’t tell me to keep trying. Your numbers are not working at all. CC entered are canceled,... Read more➤

Post

Most Reviewed

22 Aug, 2023

"Ehh no word"