This is not a chat service, and is not a way to communicate directly with Apple; it is a user-to-user technical support forum. If you have a question or issue that you think another user can help you with please describe it in as much detail as you can and a user who sees your request and thinks they can help will answer, but that might not be immediate; it could be hours later. Here is some advice on how to do that effectively→Writing an effective Apple Support Communities post.
How did you erase the device? You can see this for he method to clear your phone completely before you sell, trade, or give it away. What to do before you sell, give away, or trade in your iPhone, iPad, or iPod touch - Apple Support