It depends which site you buy wow gold from, if you buy wow gold from a safe site, it is safe; if you buy wow gold from a bad site, your account will get banned.
Honestly speaking, cheap wow gold maybe not safe. But i can recommend you a website that is safe to buy gold . At least, i buy gold there for a very long time. and there is nothing happened to my account.
http://www.guy4game.com/world-of-war...gold/?aid=1891
About delivery time, you can contact live chat to confirm it, most of times, it is depends what time you online. it is always fast delivery, within 30 minutes.
You can just order 30k wow gold to test. you will love it. best wishes.
