I purchase adwords for my site traffic but form last week My adds are pending no approval due to advertising policies of google. What I do for quickly responce.
New accounts usually take longer for approval. Once you run your ad for a period of time, a lot of your ads go live almost instantly.
They do have phone numbers you can contact them at. I find that it helps to speed up the process a bit.
A lot of people overlook the adword groups. Sometimes the problem is with your bid, trademark ingfringement and related low-volume circulation.