, you can get a maximum of 56 days 0% interest for purchases if you pay your balance in full and on time, and have paid the previous month’s balance in full and on time. You can find more information on our interest charging information on the back of your monthly statement.
How long you have to pay for a transaction would really depend on when your statement is generated and when you make the purchase. If you make the transaction on the 1st May (for example), it would then be billed on your next statement and you'd have up until the payment due date to clear the statement balance in full.
Please note, this information applies if you're using your account for purchases only and have no 0% rate.