It can be legitimate to give those card details by phone, but only after you independently verify that you called Mint’s official number—the request alone does not prove the agent is genuine.

If you have a question about your service, please call our Mint support team by dialing 611 from your Mint phone or 800-683-7392, or chat with us at mintmobile.com/chat. Our customer care humans are available 7 days a week 5AM-7PM PST.

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Don’t disclose your account number over the phone unless you initiate the call. If someone makes unauthorized transactions with your debit card number, but your card is not lost, you are not liable for those transactions if you report them within 60 days of your statement being sent to you.

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The following information and guidance is intended to provide payment security advice for merchants and service providers who accept and/or process payment card data over the telephone. The Payment Card Industry Data Security Standard (PCI DSS), however, stipulates that the three-digit or four-digit card verification code or value printed on the card (CVV2, CVC2, CID, or CAV2) cannot be retained after authorization, and full primary account numbers (PANs) cannot be kept without further protection measures. It is a violation of PCI DSS Requirement 3.2 to store any sensitive authentication data, including card validation codes and values, after authorization even if encrypted.

Verify the story by contacting the company or bank yourself. Do not rely on top search results to find a company’s contact information—scammers often buy paid search ads so their fake numbers appear at the top of the listings. And no matter who says they’re calling, never share your personal or account information, don’t grant anyone remote access to your phone or computer, and keep account verification codes to yourself.

Contact your bank or card provider immediately if you suspect an unauthorized debit or charge. If a thief takes money from your bank account by debit, or charges items to your credit card, you should cancel the card and have it replaced before more transactions come through.

(b)(1), (b)(3)

If the consumer notifies the financial institution within two business days after learning of the loss or theft of the access device, the consumer's liability shall not exceed the lesser of $50 or the amount of unauthorized transfers that occur before notice to the financial institution. A consumer must report an unauthorized electronic fund transfer that appears on a periodic statement within 60 days of the financial institution's transmittal of the statement to avoid liability for subsequent transfers.

(b)(1)(i)–(iii)

Is received by the institution no later than 60 days after the institution sends the periodic statement or provides the passbook documentation, required by § 1005.9, on which the alleged error is first reflected; Enables the institution to identify the consumer's name and account number; and Indicates why the consumer believes an error exists and includes to the extent possible the type, date, and amount of the error, except for requests described in paragraph (a)(1)(vii) of this section.

(b)(2)

A financial institution may require the consumer to give written confirmation of an error within 10 business days of an oral notice. An institution that requires written confirmation shall inform the consumer of the requirement and provide the address where confirmation must be sent when the consumer gives the oral notification.

(c)(3)(i)–(ii)

The applicable time is 20 business days in place of 10 business days under paragraphs (c)(1) and (2) of this section if the notice of error involves an electronic fund transfer to or from the account within 30 days after the first deposit to the account was made. The applicable time is 90 days in place of 45 days under paragraph (c)(2) of this section, for completing an investigation, if a notice of error involves an electronic fund transfer that: Was not initiated within a state; Resulted from a point-of-sale debit card transaction; or Occurred within 30 days after the first deposit to the account was made.