Uber — Charged twice for the same trip and now not returning the money

Address:

Bangalore Urban, Karnataka

Hi,

I have boarded Uber cab on Wednesday, July 8 2015 at 1:56 PM.
They have deducted the money from paytm balance on the same day.
But what I have found that they have charged my credit card for the same amount on 10/07/2015.
I have raised one request with them on 11th July for the refund of the money, the request id is "44493284", they replied and asked for screen shots and valid proof. I have send them all the proofs but now they are not at all responding.

Please help me to get back my money.

Thanks,
Chiranjit