Seun, Moderators Why Are My Post Always Deleted Immediately I Post Them?

I have been trying to post some mobile phones I have for sale for a while now in the Technology Market section and immediately I am through posting they get deleted, I was suspended for like 3days and was only able to start posting on nairaland again yesterday after I got a msg saying I have lost my posting abilities on nairaland because of my spam like post. Whats happening with the system? Though I have posted my ads on nairalist, I would also like to use nairaland cos I would like to get people's feedback about the phones I have for sale What do i do to rectify this? Thanx.