It depends on what categories you post in. Some are 30 days others may be 7. Sometimes you only need a couple of days to sell your item. If you do sell it right away delete it so no one else wastes time contacting you. If you have not sold it right away make sure you check back periodically to see if your ad is still running or not. You may need to repost it.
craigslist
No.
Craigslist is an online ad site.
You must set up an account with Craigslist-it's free! Make sure your ad is catchy and correctly written, describing your vehicle and the condition it is in and the price you want. Place ad on Craigslist in state and area you live, along with contact details.
They don't allow it.
Yes
To contact Craigslist directly about an ad you placed, visit the Craigslist homepage and scroll to the bottom to find the "contact us" link. You can use the "email" option to send your inquiry or issue related to your ad. Additionally, you can check the "help" section for FAQs that may address your concerns. Keep in mind that Craigslist does not offer direct phone support.
The site wold have sent you an email and with that link you should be able to edit your ad.
If the ad is looking for a relationship, yes.
Craigslist is a great place to advertise!
Craigslist costs about ten dollars to put up an ad. You must give a credit card or use a gift card in order to pay for the ad that you will be placing on that website.
The process to place an ad targeted towards the Portland area is rather simple. Browsing to Craigslist, select the state that has Portland in it, Oregon. Then click on the city, Portland. Head to the "Post To Classifieds" button and fill out the form like any normal Craigslist ad.