Leaving aside some of the less constructive comments from this thread, if the situation genuinely did unfold as you describe it, and your friend is now willing to request a removal of his riding skill so that he’d be able to give you your gold back, it’s important that he submits a ticket to our in-game support team as soon as possible.
Unfortunately I certainly cannot guarantee whether it’ll be possible for us to assist him (and please take note that it would need to be him making the request, and not you yourself), but it’s very important that such tickets are created within as short a time as possible from the actual incident occurring, in order to maximise the chances we’ll be able to help.
Best of luck, either with your friend’s help petition or with coming to an agreement with him on a methods or means to perhaps pay you back the gold over time. :)
You know the old saying, "Try, try again", "Squeaky wheel gets the grease" and so forth.
Our support staff have a fairly comprehensive set of policies to follow when it comes to restoration requests, and the time limits within which it’s possible to help, so I’m sorry to say that to all intents and purposes if it’s a ‘no’ then it will stay that way.