Tata AIG Insurance — no guidance / help despite follow up

I have purchased a scooter from rashmi mahant. I have completed rto formalities. Now rc is in my name. To change the name of r. Mahant as insured to my name, ispoke to your borivali br[protected] & 98). On 24th jan. I spoke to nikhil kumar, he told to send mail attaching rc, accordingly mail was sent. No response till 31st jan. Hence spoke to him & sent mail again. No response today till sometime ago, hence spoke mr. Sachin in morning who told me he will call back, but i had to call him back around 4.15pm. He asked me to hold & i was holding phone like a fool for 15/20 minutes. Again i called on another no. When he lied saying there was no response from me & gave phone to mr. Sandip singh, who told me in 2 days he will reply & asked me to call him.