Costco Uber/Costco Free Membership Issaquah WA

I am an Uber driver on the weekend and they offered free memberships through Uber if you maintain a certain rewards level. My area is slow outside football season so I contacted Uber about not having enough points and they said I would be fine where I was at and that I didn't need to worry. They have something that allows you to maintain your status if you've kept it for 6 months for times like this and they said I would be fine, they lied. 

Why is this Costcos fault? They decided to parter with an unethical company and all I wanted was the membership I was promised. Every time I talk to someone at Uber, they have someone in India or Mexico respond with a copy and paste. I talked to a "supervisor" and they had chickens and dogs barking in the background. 

I was finally told they would give it to me, that they somehow applied it to the email I gave them but I questioned how since they don't have access to Costcos system. They said call them and they can help me but Costco doesn't know what they are talking about. 

If you're going to partner with an unethical company that tries to rip off its employees to save $55, don't.