So I received an email from Squareup.com, from someone who told me they were going to pay me through paypal, it looks like a legit receipt, but nothing is showing in my paypal, it says, Custom Amount $, then Total, then below that, check($50 voucher required for verification to complete payment via paypal) they told me its just to verify my paypal and I will never have to do that again, but due to scams I'm unsure, has anybody seen this before?