I'm pretty sure you can go to pay while not logged in to PayPal. Then enter your credit card directly. They will tell you it's linked to an account and do you want to login. But there is still an option to go ahead and just use the card.
At the time, my account was locked down because I had the audacity to go to a conference in a town 80 miles away and try to use my Paypal account for something. They wouldn't let me unlock my account until I gave them a new landline phone number (which I didn't have) or fax them my ID (which I wasn't willing to do). It was as if they didn't want me to reactivate my account.
And I still couldn't buy anything until I got a new card.