Payment is not appearing in my PayPal account

Can anyone tell me why the payment is not appearing in my PayPal account, even though I have received a payment notification email?

This is possible if the sender accidentally sends the payment to the wrong email address. You can confirm with the sender whether the payment was sent to your correct email address or not.

If the sender has sent the payment to an email address that you have not added to your account, then you need to add the email address to your PayPal account. Once your email address is confirmed that it belongs to you, the money will appear in your PayPal balance.