Why are upline signatures required when making a placement or enroller change?

The reason is easy to understand when you realize that as a LifeVantage Independent Distributor you entered into a financial agreement with LifeVantage and the 5 enrollers and 9 placement sponsors above you when you enrolled. Each one of those upline has a claim to a percentage of the revenue generated when you sell LifeVantage product to someone else in accordance with the LifeVantage Compensation Plan. So, if you want to change your positioning, you will need the permission of each of those affected by that change.