Assuming this was his account because from his sytche profile i was linked to the same skype account. Anyways, here are pics of chat+purchase
http://imgur.com/Q9WIcQW
http://imgur.com/VuJ5zrT
proof of payment and who it was sent to
http://imgur.com/Moekp2Z
http://imgur.com/mXjGRGq
http://imgur.com/UoVLx3p here is a link showing which rs id the gold went to. As you can see it went to "traintrack6"
Here you can see he shows me his runescape name. Same one as in the receipt for the gold. Idk how much more clear i can make it than this
http://imgur.com/FHxAgHA