Hi @Pharmadude,
Thank you for your post and welcome to the Community Forum!
It does not sound like the message you've posted here was sent by PayPal. I would recommend reviewing this link to make sure that you're not following the advice of a phishing email. Also, please note that if the payment you received on your PayPal account was for £410, and you can see that this amount is showing on your PayPal balance, we would never ask you to issue a refund for a double payment. If you had received a double payment, or if the buyer had sent you a higher amount, you would be able to see it in your PayPal account. If you don't I would recommend not replying to the email received. Please send it to spoof@paypal.com.
If the buyer has a double payment, please tell the buyer to contact us directly, as we would not send you an email requesting to send money to the buyer for a similar issue. For further questions, please contact our Customer Service. If you want to contact our Customer Service, you can click ‘Help & Contact’ at the bottom of any PayPal page to see which options are available. You can also contact us on Facebook (www.facebook.com/PayPal) or on Twitter (@AskPayPal).
I hope this helps,
Martina
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