Ajnara India — Delayed/ Stopped construction of Tower P, Ajnara Integrity

I had booked a flat in Tower P, Ajnara Integrity, Raj nagar Extension, (unit- P-1801) in Oct 2018. i have made 75% payment by Dec 2018.
this was to be delivered by Jan'21 but construction is hold at floor 14 since last 3 years. There is no firm response from your corporate office also as every time they gives a date of 3 months later for construction resumption.
i tried for swapping o[censored]nit also but got no luck in that also.
Can you please swap my unit in same project with a ready to move in unit else refund my money so that i can loom for some other property.