Trai — airtel deactivate my account without any information

Address:

Kolkata, West Bengal

Respected
Sir/madam

I am a prepaid consumer of airtel prepaid mobile connection for 7 years.
One moths ago airtel deactivate my number without any reason. When i visited airtel store customer care executive told me that my account is deactivated for not use 3 months but this is not right sir. The customer care executive threaten me that if i want back my number i have to take postapid plans. Sir i am very poor. I cant afford postpaid plans. Customer care executive also thread me that my number will provided other customer. Please help me sir. I have one facebook account on this number. My airtel number is "[protected]".

From
Subhankr das
Mobile no: [protected]
Email id: subhankardas.[protected]@gmail.com