Github scam?

Hi does anyone have any problems with Github intentionally not responding when it comes to payments that you did not authorise?. I have attempted to get them to refund but so far no response. And this was immediately after i realise they have auto debited my credit card. Any help would be appreciated.

I also encountered such a situation that they did not reply to me. Such a setting made me unable to accept it and felt that I had been cheated.