Honda Cars India Ltd. — car rc, number plate.

I bought honda amaze s manual petrol from dream honda varachha, surat, gujarat on 4th december 2019.
At the time of delivery new seat covers were not available so i have been told seat covers will be installed on first service.
On first service they denied to no stock of seat covers.
Sales person named mr. Vishal from varachha show room even not answering call numerous time. I have been told that bw 45 to 60 days rc and number plates will come its not came till date. Origional receipt also not received. After sales service is really poor. I want action to be taken against these sales people.