Delhi Development Authority [DDA] — dda flat surrender amount not received for 2019

Address: Vikas Sadan, INA, Delhi

I had paid rs.2 lakhs as token money on 9th may 2019.

As the flats allotted to me was very small, this i surrendered the same on 2nd august (Within 10 days of result)

I have not received any update on my payment status and they are not picking the calls.

What's worse is that they are not even responding to mails. Mails sent on following id's:

[protected]@dda.org.in
[protected]@dda.org.in

My details are as follows:
Username: aispt7317h
Application no.: 710560

Kindly help me get my money as i need them now. It's already dated by 2-3 months.