EVER send you emails regarding personal information or containing links relating to same.

From my recollection the only valid email you will see is to warn if your card details on file are about to expire. This will not contain a link. You will have to log on to paypal or ebay, go to the relevant secure page and modify any details manually.

If either ebay or paypal need to contact you, they will do so my way of a message that appears when you log on to either site, not by email.