What is custom offer and how it is benefited for me?
A custom offer is an offer that you place to a seller in order to fulfill his needs whenever the price range of your regular offers does not fit.
Example: You have an ad offering small PHP fixes for 5$. Your client likes your job and asks you “ok, how much would you charge for building this script for me?”. Your price is, say, 500$. But you don’t want your buyer to buy 100 gigs. You then send him a Custom Offer.
Everybody is happy.