Airtel — please block my airtel number! - to avoid misuse of it!

Address:

560047

Hi team,

Im hanna from bangalore, yesterday (30th dec, 2017) i lost my samsung phone (In commercial street) with airtel sim card inserted in it. My airtel number is ([protected]).
So, please block the sim card to avoid any kind of misuse of this number.

And i would like to take a duplicate sim card, please guide me through it.

(Please note, i tried calling customer care - 121, nothing helped me there, it just directed to automated services, and i was unable to connect to the end customer support executive - i found this difficult - i googled to find out different ways to block the sim, i found out this customer complaints, hope so, the needful will be done, asap).

Regards and thank you,

Hanna
Bangalore

Number to be blocked - ([protected])

(Please note, i did not understand the category part provided to fill in the form, so, i just randomly gave it as mobile handsets)