I was almost caught recently by a PayPal scam. I had an email saying that someone had set up a suspected false payment to Boots, and asked me to call them
I logged into my PayPal account and there was the payment exactly as on the email.
I navigated to the fraud section and the phone number on their website was the same as on the letter, so I was comfortable in calling.
The person on the phone mumbled a bit, so I asked if it was PayPal and he said yes.
The conversation just didn't feel right, so I just hung up the phone, and changed my password.
I consider myself quite savvy at spotting scams, but as I hadn't clicked any links in the email, and the phone number matched that on their website made me believe it.
Regarding the "mum, I've lost my phone" one, we have a family password which would be requested if any of us were in any kind of trouble.
My son received one of those. He's definitely not a mum 😂