I do see your ticket, and it is entirely appropriate to report this.
You are correct, however, your gold will not be returned.
This isn’t a prohibited transaction - but it is an unsupported one.
To be supported - both sides of the transaction have to occur within the trade window. Obviously a service of this nature cannot be put into a trade window.
We will however investigate this - and if a scam has been found, they will not only lose the proceeds - but most likely also their account. Given the character you interacted with was level one - that in itself should put up a HUGE red flag. Just something to keep in mind going forward.