Airtel — number permanent deactivation without intimation

Address:

Cachar, Assam, 788015

I got two subsequent postpaid numbers of airtel for my business. Things were good but due to some reason one number was used very rare, so it missed on few months of payment. And then when the payment was fully made, it comes into the picture that the number which i had was no more in my name and to have that number back again i have to buy it for rs. 15000/-. For which i had no intimations nor the bills were emailed to me. So, how can a thing with no intimation to the rightful holder be taken back to company’s name, moreover why no bills were emailed to me. I admit that i have delayed the payment but when i have cleared my dues, i should have the right to enjoy the facility and that shouldn’t be charged with such a great sum.