What information do you need?
The ORIGINAL POSTER started this thread and marked it "SOLVED".
Did you follow this method (click on the link)? If not, you bypassed OfferUp, and there is nothing anyone can do for you.
If you paid for the item through OfferUp's e-payment system, and the item was not shipped, you would receive a refund.
Thank you @factsdontcare . You are so right. Blueyss is blaming OfferUp for everything but no responsibilities for herself. The thing is no matter where you sell on line you can say the same thing. People for what ever reason don’t really look before they buy. I would never buy a car if I couldn’t test drive it. Go over it. Have someone else look and inspect it. Check out the seller and the paperwork. What happens? Then they blame everyone but themselves.