Lodha Group — given me wrong information on possession date

Address:

400708

The sales person has given me incorrect information on rera possession date.
I had done the booking on 19th jan, 2019
In rera its given 2023 and the sales person had given the information on possession was 2021...
He is still having the rera gives an buffer time of 1yrs & half month...
Which i am still afraid.
While asking for refund of my money he is saying it wont be refundable.

Firstly he gave me incorrect information on the possession date since i want a house to stay on a early possession date

Kindly request you to please help me to get my 50k back from this lodha group which is my harden money.