Uttar Pradesh Power Corporation Limited — Money transaction done but receipt not generated.

Address:	245304
Website:	upcclonline.org

Kindly guide as to how can I get the receipt for the payment made of Rs. 10, 875 towards electricity bill for A/C no [protected] dated 28.12.15.Though the money is debited from my HDFC account neither the payment is reflected in the bill as its status shows still pending due to some payment gateway error. How can I proceed to get the receipt generated or get the refund. Thanks.