Airtel — Sim change in store - Charging higher price than usual

Address:

VENKATESWARA COMMERCIAL COMPLEX D No: 6-234 Venkateswara Commercial Complex Gangareddy Road Opp: Axix Bank Mancherial - 504208, Telangana

Hello Team,
I have call with airtel customer care and their supervisor, they are not taking complaints about the store which is present in 504208 and below address.

Problem : Change of SIM costing 50/- as per the airtel customer care and the terms of AIRTEL, but these store is charging 150/- and talking very badly with the customer. This is my second time i am experiencing the such issue with this store and no action has been taken till now by the airtel.