Unprofessional promised made by Maruti

1. I booked my Ertiga cng car in the mid month of December 2020. On booking I was told the waiting period is 12 -14 week which is expected to be in mid of April 2021. Now they are saying that waiting period is extended to 55 weeks that is more than a year and now in the month of April they have increases the price also. The car which I used to get in 10.10k moved to 10.90k.... whole this thing is disturbing the customer and Maruti is loosing the faith of the customer.