Follow the steps below to re-add your card:
1) From your Boost Home page, select the Boost Wallet icon on the top right corner and you will be navigated to the "Add Money" page.
2) Click on the "Add Payment type" and select "Credit/Debit cards".
3) Please enter your card details and you will be re-directed to your Bank's secure payment screen where you will need to enter the 6-digit TAC sent via SMS.
4) All set, your card will be available as one of your payment method.