Airtel — Airtel network issue at dubai

Hi, I'm currently at dubai and have Airtel sim with me. I'm continuously recharging an amount of RS.99 monthly for the active network of my number here as suggested by customer care. But after six month it showing no service here. Currently do the needful as the phone number is essential for bank transactions and other important matters. Hope you will do the needful.
My email ID is [protected]@gmail.com and mobile number is [protected].