Sir / Madam,
I pay the Airtel post-paid mobilephone monthly bill for myself and friend at City Centre, Kolkata. However, during the last three months, whenever, I visit your City Centre office, I am informed that your server is down. Therefore, I pay my bill and a manual receipt is issued by your cashier but I cannot check the bill amount for my friend as the server is down and my friend has to travel from Kurseong to Darjeeling, a...