Tata Docomo — charge of service which we didn't use and not proper answer from company

Address:

Navsari, Gujarat

i am user of tata docomo from last one month and that time company offer one month free caller tune service
before one month two day before end of month they suddenly charge me 30 Rs twice and every time when i call a customer care person they answer me system is low and we can't find your detail so please hold on otherwise call me after some time (mean thay did't tell how much time) then after all customer care person tell me different reason .
so now i am fed-up with this all thing so please any body help me.
my number is [protected] .
other wise now i am going to a police station and i am doing legal action to the company.