Just mailing to your main directly wouldn't be very smart. What I did was just do it all over AH, I've heard that it's not very safe anymore. What you could do is,
Mail the scammed gold to another level 1, delete and remake the character you sent it from. Send the gold to another level 1 on your main account, delete and remake the one you just sent from. Repeat if you want to and you could add the AH. Then just delete your Wow Cache and the "WTF"
I hope this helps
- Cyber Jesus