Nido Home Finance Limited (formerly Known As Edelweiss Housing Finance Limited) — Not providing foreclosure letter to close my home loan

Address: Tower 3, Wing B, 5th floor, Kohinoor City, Kohinoor City Kirol Road, Kurla(W) Mumbai 400070

Website: www.edelweisshousingfin.com

I have rise requset for foreclouser letter on 20th Nov, 2023 but i dont received till date .
I call many times to customer care and talk with Mr. Ashish Mishra but they cannot give proper answer. I am waiting for foreclosing letter more then 40 days