Uninor / Telenor — mobile number assigned to someone else

Address:

Kanpur, Uttar Pradesh

Hi, my mobile number which was owned by me from 5 years, was lost, so i raised a complaint to block sim. After completing all official formalities, when i resubmitted documents for getting a new sim with the same number, the application was rejected saying they have assigned the number to someone else.

How can they re-assign a number, which is under my name, according to all document proof.

It has caused a lot of inconvenience for me after losing the number which i owned for 5 years.