Nestaway Technologies — Refund of my security deposit

I rented a flat in Bangalore electronic city from Zenify, as per their agreement everything was considerable and they don't impose useless charges on security deposit but after a year Zenify were taken over my NestAway technologies, and in the month of MAY we vacated the property with prior information to nest away, on the day of leaving I didn't meet any nest away executive for final handover as per the agreement, neither anyone contacted us further for any issues. After that, we proceed with a refund of the security deposit and then nest away and started playing games with us by adding useless charges and deducting it from the security deposit which was Rs 30, 000. after struggling a lot they cone to the final figure of Rs 22, 510 and they told, at last, they we use to deduct it from everyone weather it was mentioned on not but as per agreement whatever repair and painting charges will be it should be deducted as per actuals, but they are not ready to listen to anyone. after that, they blocked us from everywhere and we can't reach them anyways. i too have more docs in pdf format that i can share.