House Owner not returning my money.

Hi, I am an Indian National currently staying and working in Kuala Lumpur. In mid Dec 2017, I directly connected with a house owner through a property website who was renting out his house on shared basis. When I saw the house first time, the owners father was staying in the room I had booked for myself and I was informed that his father is moving out of the country and will be vacating the place in a week's time. I booked the master bedroom for myself by paying a part of security deposit of RM 1000. I talked to the owner about complete conditions and also told him of my intentions of renting out his place for a period of 3-4 month's initially and then extend based on my stay in Kuala Lumpur. Owner had agreed to the same. I also informed that my move in date will be 15 Jan. However, because it was a Monday, I contacted the owner a week before to ask if I can move in on 13th or 14th and the owner agreed to it. A day before my move in date, I was informed by the owner that his father was still in the house and he would move out a day later so I can only drop off my luggage there but move in only by 14th. Finally I moved in the house completely on 14th Jan, unfortunately to my surprise owners father was still there in the house and he was staying in the living area now with all his belongings in all the possible areas in the hall. The kitchen was a mess, something no normal human being would like to get into. I was unable to cook from day 1 itself. The next day I left the house for my work and when I returned, owners father was having liquor in middle of the hall and using all the common area furnishings provided like the TV, AC, etc. The entire house smelled of liquor. I checked with owner on his father's move out date and the timeline for getting the house cleaned for tenants usage. I was again given a different date of 17th Jan for clearing all things. Fortunately or unfortunately, the owner and his girlfriend came in on 16th to have dinner with his father and I took this opportunity to discuss with him out all the issues and while we were conversing, owners father barged in my room yelling on top of his voice and using filthy language while talking about me. He kept bagging some or the other stuff in the house until both the owner and girlfriend left the house. Obviously as a woman I felt completely insecure post this event to stay in that house and hence at the same time at night around 12:30 am I messaged the owner about the disrespectful event and my intentions to move out immediately. We met the next day in the absence of the owners father along with a friend of mine to discuss and get the total amount of RM 3700 back from the owner. Until today I have been following with the owner about it and I am not getting any response. Please note, the agreement was not signed yet as the owner had not prepared the agreement until then. Please advice on what should be my next steps.