CheapMmoGold

This is my first choice in buying wow gold. At first I had my doubts, I was extremely worried all the time. But, I did get what I wanted and even more! They usually give you an extra I forgot how much% of gold, its really worth buying from them! Although they might not be the fastest, they are definitely the cheapest and most reliable.
You can ask them about the transaction progress and a lot of other stuff in their chat, I would definitely recommend them to anyone who wants to buy gold.
P.S. They won't take longer than 12 hours, ever! (From my experienceS)