By DialHelpUSA Editorial Team · 200-word guide
Lock blocks all transactions immediately. Unlock if you find it. Recurring payments and direct deposits continue.
For Citi credit cards: 1-800-950-5114 (24/7).
For Citi debit / banking: 1-800-374-9700 (24/7).
Tell the agent: "I'd like to report my Citi card lost / stolen and request a replacement. The account number ends in [last 4 digits]."
The agent will:
For full Citi contact details: Citibank Customer Service.
While on the call, ask the agent to walk through the last 30 days. Citi's Zero Liability covers unauthorized charges with prompt reporting - usually credited back within 1-3 business days while they investigate.
The new card has new number / expiration / CVV. Update:
Visa Account Updater handles many automatically.
Citigold (Priority / Plus) customers get:
Available to customers with $200,000+ combined Citi balances.
Yes - Citi's Zero Liability covers unauthorized debit and credit charges if reported promptly. Provisional credit usually within 1-3 business days.
5-7 business days standard. Overnight $25 (or free for Citigold).
Yes. Mobile app provides digital card for Apple Pay / Google Pay. Some Citi branches issue temporary cards same-day.
No - lock only blocks new card transactions. Existing recurring payments continue normally.
Other questions our readers commonly ask about this topic:
Yes - Citibank customer service is reachable on a toll-free U.S. number that does not charge a per-minute fee. Standard mobile-carrier minutes may apply on metered cellular plans. International callers may pay long-distance charges depending on country and carrier. Visit our Citibank contact page for current toll-free numbers and hours.
Simple problems (account access, password resets, basic billing questions) typically resolve in a single 10-15 minute call. Complex issues (refund disputes, identity verification, escalated complaints) usually take 3-7 business days because they need supervisor review or document submission. If your case has stalled past 7 business days, escalate to a supervisor or the executive customer service team.
First, politely ask to escalate to a supervisor or to the executive customer service team. Most brands have an internal "office of the president" that handles complex complaints. If escalation does not resolve it, file a complaint with the Better Business Bureau (bbb.org), your state Attorney General consumer-protection portal, and - for finance, telecom, or airline issues - the relevant federal agency (CFPB, FCC, or DOT). Our Citibank customer service guide lists the alternate channels.