I was making paying UGVCL electricity bill through their website which uses Billdesk payment gateway. I entered my card details and make the payment through OTP, but after entering OTP the page crashed. The amount was debited from my card but the amount was not credited to UGVCL against my Customer Number. I had faced similar issue again while making payment of LIC premium. After these two incidents, I had stopped paying online. I would not recommend you to use Billdesk service unless and until their service are updated.