UBER LACK OF USER CUSTOMER SUPPORT

I have recently received a new credit card. The Uber App will no longer work. I have deleted and reinstalled the App, I have keyed in credit card details about 6 times. When I google Uber customer services it takes me to the employee’s app so there is no forum for an Uber user to get help. Even using the “help” selection on the app and following the prompts still won’t accept a new credit card. I understand that cash can be used but that is not convenient in an emergency.