Ok, I have just checked my emails tonight and I am rather confused.
I sold on here yesterday, received payment, posted today. Now I've just received an email from Paypal to say they're investigating a payment as 'Unauthorised Payment'...
Can anyone shed any light in to whether this claim was started from the buyers end or do Paypal do this often?
I have uploaded the scan of the postage receipt through the dispute pages like they asked.