Suspected I got scammed, what can I do

[MaxWolfe]

I recently sold my switch. I listed it as an auction but someone wanted to take it immediately for 320. What a dream! Or I thought. I got emails from paypalfundsintl (at) onlinealeert dot com , first notifying me of payment recieved, then notifying me I needed to send tracking information (before the money even appeared in my ACTIVITY) Before they could release my money And then notified me that I needed to refund £150 because the buyer sent that extra because they had to spend a minimum of £500 because they owned a private business account? I have NEVER sold before so I think they took this to their advantage. Was this a scam, they have my switch and I'm 19. The 150 was out of my pocket money Is there anything I can do?

[kernowlass]

@MaxWolfe 

SCAM.

They encourage you to accept a 'direct' Paypal payment and may ask you to send the item internationally.
No funds or activity of the transaction shows in your Paypal account and any emails 'may' go into your junk/spam folders.

You will get/got a "fake" email that looks as though it is from paypal.....it isn't because they don't actually have a Paypal account and have no intention of paying you.
It will say the buyer has paid ...you won't have been paid.
They will tell you that the payment is released when you provide paypal with a tracking/shipping number......this won't happen.

Once you have become a victim they may try again with more fake Paypal emails with other 'reasons' that you must send them a payment for custom fees / sent to much / need to verify account to accept payment etc.

Paypal NEVER tell you to send an item before the payment is showing in your paypal account.
Paypal do not tell you to send trackable, they advise it for selling protection but it is not compulsory.

Paypal never tell you to refund other than via paypal from the RECEIVED FUNDS.