I have an old credit card on my account and I go into wallet and try to remove it and it won't go. The address is not current and I can't change it as i don't know the security number for the old credit card (it was destroyed sometime ago)
Welcome to the PayPal community. It is always good to have new members.
It does sound strange that you would be unable to remove an old card. It may be best to give us a call so we can help you remove it. To call just click on the "Help & Contact" link at the bottom of any PayPal page.