29-06-2020 10:51 PM
You won't be able to 'locate' a buyer's email address.
If your listing is still live, do not ask for their email address (or any other form of contact information) as this is a policy violation and could result in a suspension/ban. EBay may consider this an attempt as an off eBay deal. You can see the warning at the bottom of the box when you send or reply to messages.
You can only exchange details once the item is sold.
I have sent pictures easily using my PC but understand it may be different with other formats.