Multilevel Affiliates add-on will help you with affiliate recruitment, management, and tracking while you are using WordPress Download Manager Pro along with Premium Package Add-on. This add-on has a special feature to implement the Multi-Level Referral Commission sharing option, which will boost up your sales. The Multi-Level Referring Promotion feature uses a marketing model similar to MLM. Where you can set multiple layers of commission for the top-level referrer. A top-level referrer will able to earn commissions from multiple sales even simply referring to one person which will certainly encourage him to refer your product at least to a potential client. And here the magic is, each user is a top-level user in his referring tree. So what I say, this plugin can increase your sale 10 times more than any other plugin as well as manage your membership in a better way than others.