Not to be trusted

I was leasing with Zelri properties. I had to move out of their property because it was leaking everywhere from bathroom, bedroom and lounge. The house was full of mould and it was not healthy living there especially for little ones. I complained to them countless times and they did bother to even come check what was wrong. Eventually I asked them to move out even though my contract was ending at the end of August. That again was a hustle because at first they didn't want to pay back my deposit. To cut this story short. Eventually they agreed to pay me back. I moved out on the 3rd of July up till now they not payed me. Mind you my lease agreement say the deposit is payable within 14 days. I've been calling them and its just one story upon the other and been transferred from one person to another.