You signed up to buy guest posts, so the app opens the marketplace on the Guest posts storefront. Here is how a purchase works from there.
Find a placement
Narrow the storefront by category, sort by newest, price, best selling or top rated, and search. Each listing shows its seller, its packages and its price.
Judge the site before you buy
On guest posts the real site address is masked until you have bought: a publisher's list of sites is their business, and a public list could be copied. You still see what you need to judge it. The authority and traffic figures on a listing are measured by us from the site itself, never typed in by the seller.
Order it
Choose a package and pay. If the listing asks for a brief, give your target page, anchor text and topic; the seller writes and publishes the post on the agreed site. Every order has a message thread with the seller under Marketplace → Messages.
Your money is held until you accept
You pay us, not the seller. When the seller marks the post as delivered, check it is live on the agreed page. You have an inspection window, shown on the order, to accept it or raise a problem; the money is released to the seller when you accept, or at the end of the window if you say nothing. If it is not what was listed, raise it on the order before the window closes and the funds stay held while it is looked at.
Selling instead
If you publish sites and want to sell placements, open Marketplace → Sell.