I’ve just created an ad campaign in google adwords. Although the status shows live i am not sure if my ad is running. i still have to submit my billing info. will my ad run only after submitting the billing details? I looked in the help section but couldnt find anything.
Please someone help.

If the status shows live, then everything is OK. There is an area in Google adwords after you log in where you can check whether your ads are appearing and at what position. Also sometimes it takes more than 48 hours before your adwords ads start appearing.