Airtel — Bill problem and cheated by dedicated team

Am black customer in Airtel
i was promised by waiver of amount 600 from last 3 months..which dtc not used by me and i asked for re installation for that which they gave not done and not makd a note
morning i called dedicated team they told me to pay 2300/-in my bill of total 2699/-
again i called to 121 another person also told me to pay the same amount
which ix not showing in my app to pay partial payment.
i called again but later i came to know that they told me simply
all calls i have recorded and from morning they are wasted my time.
i want to port my sim.
i think this email solve my problem
please do the needful
am attaching my call recording to this please check and punish them with my bill.
thank you