I have successfully done 2 separate RaF's with him
The first one he let me see the change on my battlenet account before i gave him gold .. as this was my first time doing the RaF thing I was iffy about the process and him.
The second one I gave him my gold before hand because I knew he was a straight shooter.
I highly recommend this RaF gametimer.. he actually takes the time to explain the process to you 5 times until you understand it