Maruti Suzuki India — Dealer bad response to customer

Address:

Chennai, Tamil Nadu, 600032

I HV booked a new dezire with your dealer, ABT, guindy. on 29 April 2017. At that time they made some commitments. But did not honour same. However I made several calks, mails. Messages there were not prompt responses. I wanted to make payment one part last week they refused to accept after calling me to off. Then they gave my priority to some other customer stating GST as reason . after that I spoke to sales exe for status. Regret till now no positive response. Now I have decided to cancel my bookings. Shift my two decades and four variant used the loyalty to Honda from Maruti .
If this type of treatment meted to maruti customers maruti will tend to loose sizable customer base in south.

Pl advise them for proper corrective action to focus on custoner relations and responses.