Airtel — overcharging on duplicate sim

Address:

Mukundpur Near balmiki chowk, New Delhi, Delhi, 110042

Hi my uncle has lost his SIM ([protected]) and when he goes to obtain an duplicate SIM store in mukundpur delhi 110042 has charged 300 and has denied to give bill for the same. as per my understanding the fee is around 50 to 100 but your store has charged it on very high rate..Take appropriate action...You may call me for more infirmation.

My vodafone no-[protected]
Airtel no-[protected]