Double-Charged and still get no response!!!

For the past two days I have been trying to get my money back from Uber Eats, they double charged me on Saturday and their stupid consultants keep saying they can't investigate further! They also have the nerve to keep assigning me a different consultant with every response I give! Give me my money back, I have been a loyal customer for a longtime, even got that stupid UberPass! After this I am done with UberEats