Contact Us
We're here to help with orders, listings, and policy questions.
Customer support
Email is the best way to reach us. Include your order ID and any relevant photos when contacting us about a delivery or product issue.
Mascot Marketplace
support@cornerstonecards.shopMonday–Friday, 9:00 AM – 5:00 PM Central Time
We typically respond within 1–2 business days.
Business address
27 N Wacker Dr., Suite 438
Chicago, IL 60603
United States
Registered / business correspondence: 27 N Wacker Dr., Suite 438, Chicago, IL 60603.
Order help & tracking
After you place an order, you will receive order confirmation by email. When your item ships, tracking details are provided so you can follow delivery progress. For help locating an order or tracking number, email support@cornerstonecards.shop with the email address used at checkout and your order ID.
Payments & security
Checkout is processed securely through Stripe. Mascot Marketplace does not store your full card number on our servers. For payment questions related to a specific order, contact us at support@cornerstonecards.shop.