i had bought a Sim at vestal communications tirupur .The number is 9003700333 in name of Musthafa and paid Rs 460 for sim 60 Activation 300 and number 100. they didn't give me any recipet for the payment i have made.And in my current Bill they had again added rs400 for the number i bought .I want to confirm that weather VESTAL Communications is under AIRTEL because when i call to Customer care they are asking for the receipt for the Payment which i have made.The way of support from customer cae And your showroom is not Satisfied and i want to know that how can i solve this issue ?