Q. Can I access my Tesco Credit Card Account details online if I’m accepted?
A. Yes – you must register with ‘My Accounts’ first. This will show you your credit card account plus any other Tesco product account you may have. To register for ‘My Accounts’ on our Tesco web site, tab into ‘My Accounts’ on the top bar of your screen.
So follow the link bobnick posted and click "my account" tab at the top.