What is MLM & Is It Legal??
First of all, the basic terminology can be confusing - Network Marketing, Multi-Level & Referral Marketing are all the same biz - just a different branding spin on a business/commission structure that pays you for your sales as well as on the sales - of those you “recruit” into the business (this is known as your “downline”).
Party Plan Sales is another type of structure often used by direct sales companies (TupperWare for example!), and may or may not pay the same “multi-level” commission structure, it just depends on the particular company and whether or not you have the ability to recruit a sales force or downline - just different names for basically the same structure.