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

# Card Activation Center

> Your one-stop hub for card activation guides, troubleshooting, security tips, and FAQs.

Welcome to the **Card Activation Center** — your one-stop hub for everything you need to activate and manage your cards with confidence. Whether you're setting up a brand-new credit card, fixing an activation error, or looking for security best practices, you'll find clear, step-by-step help right here.

## Explore by Category

<CardGroup cols={2}>
  <Card title="Activate a New Card" icon="credit-card" href="/blog/citi-activate">
    Step-by-step guides to activate credit, debit, and prepaid cards online, by phone, or through mobile apps.
  </Card>

  <Card title="Fix Activation Problems" icon="wrench" href="/troubleshooting/citi-activate-not-working">
    Troubleshoot common activation errors with proven fixes — from browser issues to server outages.
  </Card>

  <Card title="Card Security Tips" icon="shield-halved" href="/blog/citi-activate">
    Learn how to protect your card from fraud with alerts, 2FA, PIN best practices, and safer online habits.
  </Card>

  <Card title="Frequently Asked Questions" icon="circle-question" href="https://citihelpguide.mintlify.site/faq/general-faq">
    Quick answers to the most common questions about card activation, payments, and account management.
  </Card>
</CardGroup>

## Popular Guides

Jump straight into our most-read step-by-step guides:

<CardGroup cols={2}>
  <Card title="Credit Card Activation" icon="credit-card" href="/blog/citi-activate">
    Activate your Citi credit card online in minutes.
  </Card>

  <Card title="Debit Card Activation" icon="money-check" href="/blog/citi-activate-step-by-step-guide">
    Activate your debit card at an ATM, online, or by phone.
  </Card>

  <Card title="Prepaid Card Activation" icon="wallet" href="/blog/citi-activate-phone">
    Get your prepaid card ready to use with quick mobile activation.
  </Card>

  <Card title="Gift Card Activation" icon="gift" href="/blog/citi-activate">
    Activate and register your gift card for online and in-store use.
  </Card>

  <Card title="Lost or Expired Card Help" icon="triangle-exclamation" href="/troubleshooting/citi-activate-not-working">
    What to do if your card is lost, stolen, expired, or won't activate.
  </Card>
</CardGroup>

***

## Need More Information?

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  <p style={{ fontSize: '1.15rem', maxWidth: '640px', margin: '0 auto 2rem', color: '#4b5563' }}>
    Browse our complete library of activation walkthroughs, troubleshooting tips, and helpful articles — all designed to get you back on track quickly.
  </p>

  <a
    href="https://citihelpguide.mintlify.site/blog/citi-activate"
    style={{
display: 'inline-block',
backgroundColor: '#1f2937',
color: '#ffffff',
padding: '18px 48px',
borderRadius: '10px',
fontWeight: 'bold',
fontSize: '20px',
textDecoration: 'none',
boxShadow: '0 6px 18px rgba(31, 41, 55, 0.45)'
}}
  >
    ▶ Explore All Guides
  </a>
</div>