T24 Mobile — how to get new sim card for t24 mobile number [protected]

From past 1 year i'm trying to get new sim card for my t24 mobile number. I lost my mobile one year back which is having t24 number [protected], i'm vijaya raju. V. From the time i've lost my mobile i'm regularly visiting big bazaar but they always tells only one come after 2 days this happened for 2 months and one day i shouted on them, then they tried to do some thing and they came out with a filthy solution that we don't have any detail in our records about number and they told me to come back after one month. As this number is my alternate number i couldn't give that much time to get this number back and mostly i use this number for my resume and also present office contact number. So please kindly give me any suggestion or show me a way to get my number back