Follow the link you have been given in the email.
You will see the page below. If you have a PayPal account already, just enter your username and password:
If you don’t have a PayPal account, don’t panic! It’s easy and takes 5 min to set up. Just click the link that says ‘Don’t have a PayPal account?’ and you will see a simple form:
Once you’re logged in, you’ll see:
See how the Secondary Funding Source is set to ‘Not Specified’? You need to change this to your credit card or bank account. Just click ‘change’ to set.
(The Primary Funding Source is always set to ‘PayPal’)
Finally, click ‘Approve’ and you’re done!