Tata Motors — complaint against marina motors calicut ,kerala

Address:

676551

Sir.
I have purchased tata nexon from marina motors calicut. My deal was exchange of my old car (Verna fluidic 2011 model) so they promises 10k echange bonus plus corporate offere 5k total 15k extra benefit. Down payment of nexon they taken from my old car amount balance amount the have transferd me is less what they offered before and my other benefit also they cut which they have given me exchange and corporate offer. Now they are not hearing me and they delaying my balance return payment by telling some excuses.
And my nexon car also have some sounds coming from inside while going through hump and my lft side door handle color changed now white to yellow, they are not listening my complaint also.
Am requesting to take action against marina motos calicut, kerala.