paypal scam

my dad was going through the spam folder of my parent's email account deleting the emails even after I told him that he didn't have to. He came across a paypal one that looked legit at first glance that said they needed to pay something. I looked at it and it said paypal@paypa[U]I[/U].com . I said, don't click on that it's a scam and luckily he didn't. But he still made me delete my parent's and my paypal account. probably since mine got hacked and ended up making me get a new debit card.