No Payment Taken

On the 4/10/2015 I had organised a ride home for myself and friends. Used the Uber app that everyone says is so awesome then the cab picks us up. Perfect. The next day, i get a message they were unable to charge my card. Fine. I load the funds and try and make the payment and does not work. Tried numerous cards and none goes through. Now i have to use other cabs that cost the earth coz Uber wont allow me to use the service after they never took payment