By DialHelpUSA Editorial Team · 300-word guide
Available 24/7 in English.
Eno can generate single-use or merchant-locked virtual card numbers for online shopping:
This is the strongest fraud prevention available on a U.S. consumer credit card. Use it for any online retailer you don't fully trust.
Eno automatically detects recurring charges and alerts you when:
You can review Subscriptions in the app: Account Services > Subscriptions. Cancel directly from there for some merchants.
Eno handles roughly 90% of routine inquiries faster than calling.
For full Capital One contact details: Capital One Customer Service.
Eno uses your transaction data to provide insights. Capital One states they don't sell Eno conversation data. To delete chat history: app > Eno > Settings > Clear conversation.
Disable Eno SMS alerts: Settings > Eno > SMS Notifications > Off.
Eno generates a unique 16-digit number tied to your real account. Lock it to a single merchant or set it for one-time use. If the merchant is hacked, your real card number stays safe.
Yes - Eno is built into Capital One's official app and uses bank-grade security. Eno never asks for your password or full SSN.
Eno can identify subscriptions and direct you to cancel them. For some merchants, Eno can stop the charge directly. For others, it provides instructions to cancel with the merchant.
Eno errs on the side of caution. Confirm legitimate charges in the app to teach Eno your spending patterns. Frequent false positives subside after 1-2 weeks of confirmations.
Other questions our readers commonly ask about this topic:
Yes - Capital One 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 Capital One 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 Capital One customer service guide lists the alternate channels.