Wrong commitments while renting the flat

Hello Sir/ Ma'am, I have taken the flat on rent on 1st Nov through dealer. I have deposit 40k as security to Owners account and 9000 as brokerage. Its been committed to me that Ground floor is yours, their is no parking space for other tenants... Its all yours , committed by owner and broker. But as soon i shifted i.e.. 3rd november.. 1st floor tenants parked theirvehicle on my ground floor which has blocked my passsage to use the space for drying up the clothes. when i complaint this to them..they said this is their space..nor mine. i talked to owner and dealer they were unable to sort the issue. yesterday i.e.on 12th nov at 9:30pm ..1st floor tenants argued with me...and when i told them I am uncomfortable with ur parking on my ground floor... then whole night they distrubed my sleep and annoyed me a lot... I cant be able to sleep till 3:30 am. and also before that they actions are like harrassment. they are giving me the tensions a lot. i was living alone and a working lady I already informed the owner dealer about the issue but nothing done. I have been started suffering with health Issues. so Today I vacate the home. Now I am asking them for my security refund. I told the dealer and owner todeduct the 13days rent electricity and water bill i.e 5200 rent (12k was the monthly rent)+ electricity bill+ water bill= 6k . so they can deduct 6k from 40k and refund my money back but nothing been done. I need my money back kimdly help I really appreciate your guidance. Thanks Priyanka S bangalore