Uber refusing with my money

I requested an Uber last week but canceled it immediately when I saw how long it would be for the driver to get to me. They had already taken the funds out of my account but I thought that would be refunded same time. Till today almost a week , I have not received my money back. I have sent numerous emails to them and all I get it is a generic response stating we are working on the issue. I am very upset about this. No one has tried to communicate, call. If I don't ask, I don't get any re spouse. This is really bad customer service. And how are you withholding my money. It's mine and I want it back.