They are pretending to call from Paypal headquarters in San Jose, yes it is a real number and I think that they are just phishing and the number is from someone in SJ. They’re trying to get you to transfer money to their paypal in order to “fix” your credit card issue on your bank or paypal account.
Heres the number:
1(408)362-5017
He has a really young voice... might be a kid idk