The website seemed to state the only difference between the premium starter kit and the basic start kit was the inclusion of a diffuser. This is not true, the basic starter kit also doesn't have the oils.
Unlike most companies, you have to pay for the shipping of the return. I contacted the customer service and talked to the supervisor on the floor, Natalia. They would not even apply the shipping to a future order just to keep a member.
It will probably just be a six dollar return shipping, but if it is this difficult to work with them, I would gladly find another company.