Classified Ad Posting

I am looking for a classifieds (Craigslist) posting service to post Ads at on the cheap. Must provide proof of posting / tracking information. You must also provide the needed phone verifies accounts. I want to place job ads in multiple cities at the same time, i keep getting my ads pulled. I need to hire 20 sales reps and am having trouble doing so just in my local market. This is a legit job and i wont be asking applicants to pay anything. Please get back to me with pricing and description of what you can do for me.