Why you would cancel your card.
When you are very sure your card has been compromised, and the situation requires immediate attention, you should cancel your card. Cancelling your card will permanently delete the card details within the Mastercard network, stop any future transactions from occurring, and block all current transactions that haven't settled yet.
Please be sure to read about freezing your card before cancelling it.
After you've cancelled your card, you must contact support explaining why you cancelled it. It may take 3-5 business days for Pebble to process your request and issue you a new card. Our goal is to mitigate the risk of fraudulent activity on your account by as much as possible.
How you would cancel your card.
1) Click Cancel on the Card screen.
2) Then, select Confirm.