I want my la mon villa deposit back

This rental agency is refusing to pay back my deposit money as per our leasing contract, they are claiming that I've done some damages to the unit which is so untrue the unit is as I found it ,Friskie did the inspection when I moved in and didnt report what they are claiming needs to be repaired now. I was told after moving out that the unit is not clean ( I went back for cleaning again, I had to drive to Murrayfield to collect the key and also bring it back there) and apparently the unit is still not up to standard, now they have quaoted me on cleaning and maintenance and the amount is way bigger than my deposit amount . Wikus keep adding cost and damages that am not even aware of. I will never recommend this rental agency to anyone