its saying this
but i havent tried to make a payment for anything, just want to add bank details
Add a Bank/Building Society Account in the United Kingdom
This payment cannot be funded with your credit card.Learn More
If you would still like to complete this payment, you must add and confirm a bank account (a process which will take 3-4 working days). Add your bank account below.
This account will become your primary payment method, but you can change it whenever you make a payment. Learn more
When you successfully add your bank account to your PayPal account, you will be able to use your bank account to pay for online purchases or withdraw funds from your PayPal account.