Pathetic Customer Service - negligent air hostess

Extremely bad customer service and will not be using this airline anymore. I had a flight from Jhb to Durban and safely stored away my laptop bag in the overhead compartment. The air hostess moved my bag and placed it over another bag without my permission in order to put another passengers bag in place of mine. During the descent the overhead compartment flew open and my laptop bag fell out and hit the ground( this was the only bag that fell out as it was not properly placed in the overhead compartment when the air hostess moved my bag). After the flight I checked my laptop and there were damages to it as a result of the fall. I informed the air hostess and all she said was “okay. After a while she told me to go speak to the ground staff. She wasn’t of any help so I went to the ground staff. I spoke to two separate ground staff and both asked me to go to the lost luggage department to lay a complaint. I went through to this department and was told that they cannot help and I need to call the FlySafair call centre so I asked for some sort of confirmation that I can provide to the call centre agent so that they know I laid a complaint at the airport and the lady said I must just give them her name. It was late at night so I could not call the call centre at that time. I sent through emails to FlySafair thereafter I was requested to sent pictures of my laptop, boarding pass, the invoice for my laptop. Etc. I sent this through and received a response saying that they sympathise with me but cannot do anything as it is the passengers responsibility to store their hand luggage . I responded to the email to reminding the agent that I did store my luggage properly however it was moved by their staff without my permission so surely they should take some responsibility for this. I was ignored by the agent for two days and received another email saying that they cannot be held responsible for passenger luggage. This was ridiculous cause it was the negligence of their staff. If the air hostess did not move my bag my laptop would not have gotten damaged. I will not be using FlySafair anymore. The customer service is pathetic.