Daily disturbance and warning

Location/place: Patna

Name of company/service: Reliance

Dear sir,i had got a sim from reliance,the sim was postpaid.my all packs was free like( internet,kall pack),but every month i got enough bills,i will demand for the details of enough bill.but i will never got it.since 3 month i am using other sim and not using reliance sim.and never i will take a kall or email from reliance,but few days i am very disturb,because before some days reliance company employee kalling me and warning me to paid pending bill,perhaps there is a notice on me by reliance company.i am a private sector pharma company employee.and i am very disturb now.i can not doing something.reliance gives a notice and f.i.r on me.i also want to do a fir and notice on reliance.
My name–mukul kumar,father–manoranjan sharma,address–kajipur naya tola,patna,machuatoli.front of old gurudwara.number–07209198597
reliance number jis pe complain karna hai–09693923010,isi postpaid number ke karan mai pareshan hu.please help me and kall me on 07209198597