[Resolved]  Idea Cellular — allotted my idea no to another customer

I am a idea customer last 4 years and idea company alloted my phone number to a different user on idea network. My phone number was linked with my bank account, aadhar, pan and i have been left handicapped without my number. I am student and i have submitted my number in examination forms. I have my whatsapp account on that number since 4 years. I have been left handicapped without my phone number as people related to me cannot reach me and even colleges, institutes, bank, cannot reach me or contact me. I want my phone number back as idea has no right to allot my phone number to a different user if the company has shut down. Please look into it