Please please don’t trust this number,
It is a scammer with somehow inside PayPal information.
If you don’t believe me then email PayPal and ask them if it’s a registered number with them.
I called 3Mobile to query why my phone bill was so high with at least £12 extra being charged for at least 2 months running and they said cos of dialling FOUR TIMES the premium no 00353 152314000 - which i most definitely didn't call.
This was a genuine security call from PayPal wishing to verify an unusual transaction on my account. They didn't ask for any confidential information, simply to verify that a particular transaction was placed by me and what it was for.