Airtel — Lost sim card need immediately

Address:

Airtel Center, Plot No. 16, Udyog Vihar, Phase-IV, ; City, Gurugram ; State, Haryana ; Country, India ; Pincode, 122015.

Respected sir,

I lost my sim card holding no [protected] Assam circle in 08.08.2020. I could not visit airtel store because i was stuck in bhutan due to covid pandemic.
The border of bhutan were sealed for 2.5 years and i was unable to go to airtel store for duplicate sim verification. And now the store are saying that i will never get my sim ever. I would like to request to airtel members to give my old sim number.I will provide every document which i provivded during sim purchase.
The sim receives all my bank, gmail, college university and many more otps.
please kindly help me to give my old sim back.
Or compensate me.