Tvs Motor Company — regarding wrong billing and extra charges for rc

Address:

Sirsa, Haryana, 125055

Dear sir/mam,

I have purchased tvs jupiter which chassis no is md626eg43j3l48090 on dated 24oct 2018 from nmp tvs sirsa. The vehicle was delivered by same day on offline delivery challan. I asked about the bill but they told me that they have applied for the rc so bill will be sent to rto. They did not give me any xerox of bills.
I ask them many times for the rc applied detail and date but they denied to answer. Even they charge 4500/- where the fee of rc is approx 3000/-. Today i checked using customer service app and found the billing date is 05nov2018. Please find the screen shot.
Till date they had not applied for the rc and i have no any billing proof. Kindly guide me how to go through this situation.
Kindly justify the things otherwise i'll have to go through some kind of legal process
Kindly communication my contact no-[protected]