Hyundai Motor India — dealer misguided about discount

Address:

Raigarh, Chhattisgarh, 496661

I had purchased my grand i10 on 30/06/2018 and a corporate discount of worth rs 5000 mentioned in the quotation. Now after 3 months they give me a 3876 rs chq and said the remaining amount deduct in gst. They tell me about cheque at the time of car delivery and said i received my 5000 rs cheque in 15-20 days but now after 3 mnths i informed by them about 3876 rs amount cheque.in my fisrt service they didn't tell me about2 year free road side assistance policy and also sold me a road side assistance policy by fraudly.