Sdmc — property tax submission on line

Address:

New Delhi, Delhi, 110076

Under property id [protected], i tried multiple time to deposit prop tax on line.in two attempts, my tax money (Rs. 2832 each) was deducted from my credit cards but my transaction window shown zero transaction. My tax could not be deposited. How i can get my money back.
Now i could not be able to get the lumpsum rebate of 15% as tomorrow this offer will be expired.

Ashish gupta