Hello @junjunasks,
Welcome to the PayPal Community! I'm sorry to hear you're running into some issues with a recent Pay in 3 transaction. If you want to make future payments with a new card, you can change your payment method by logging into your PayPal account, going to PayPal Pay in 3, and selecting the PayPal Pay in 3 plan you want to change. There, you can click Change under Payment Method to update your information or choose a new way to pay.
If your debit card will expire before your PayPal Pay in 3 plan ends, you can update your card information by following the same steps (above) or update your information in your PayPal wallet by logging into your PayPal account, clicking Wallet, choosing the card you want to update and clicking Update Card.
I hope that helps!
- Jon K
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