This is not a scam and you do not get your money back!
It is only a "trick" that I personally use .. do not flame me cause you need irl money to do this. If you are poor then return to another guide...!
It costs some time, and some overview, You must keep an eye on.
1. Which gold sides that is cheapest.
2. Which server got most profit vs gold costs.
3. U need the time for making an alt, and level to min. level10
*What you do*
Buy some gold from, let's say
www.Thsale.com. you se that gold on Ravencrest is mutch more cheap, than on Terokkar.
Ravencrest alliance 5.000gold =
$80.70
Terokkar alliance 5.000gold = $175.70
You se my point?
So if you finde a server that is cheaper than the one you play on = BONUS if not u need to have 1month for transfer chars.
Else you do this. But let's say 5.000gold on Ravencrest you se that Infini.. Dust is ALOT cheaper on Ravencrest than on Terokkar so you spend 5.000gold to buy those, or other stuff that gives you a huge profit.
After that you transfer your char from the "cheap" server -> to the "Expensive" server..
i really hope you got the point by now 
My profit:
1 Char transfer =
25$
1 x 5.000gold = 80$
Total cost = 125$ (Still under the 175$ for original gold on terrokar)
I used 4900gold on Ravencrest ONLY buying regs for enchanters, sold it all on Terokkar and got (let's say a decent ammount) gold back. I ended up with 13.700gold so that is quite a big profit...
Try it, use your brain before spaming "Buy" button.. and most important .. keep a track on prices, and AH's ...
Hope some can use this "trick" and i don't hope i get any flame
EDIT: 1 = IF you are using Thsale.com use the cupon code "Cindy10" for get extra gold
just a little hint from me!