How to block a lost American Express credit card immediately?
Asha Pramanik
Asked 10 Apr 2026
I lost my American Express credit card. What is the fastest way to block it through the app or customer care to prevent misuse?
3 Answers
I was worried about the high joining fee but the welcome benefit voucher was credited within 30 days of crossing the spend threshold. Net cost: zero. The trick is to time your application so that you make a big purchase (appliance, travel booking) in the first 45 days.
For the fee waiver condition: most banks count only retail purchases, not EMI, wallet loads, or fuel (in some cases). Read the TnC PDF linked at the bottom of the fee-waiver email — it's usually 2-3 paragraphs of fine print that change everything.
I've held this card for 3 years. Quick reality check: the welcome benefit is good, the first-year fee waiver is easy, but from year 2 onwards you really have to work for the milestone benefits. Don't keep it if your monthly spend drops below the milestone threshold.
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