Poor service delivery and no communication or update on my vehicle

It saddens me that my car has been at ford Polokwane for Fr almost 2months now with a central locking problem and they continuously tell me I don't know what is wrong with my car but they think it's an electric problem and when I ask them when do they think they will find the problem on my car, they literally don't know.. my car its a ford fusion and is still under warranty,. Ford promised to fix the problem under warranty so I asked them(ford) to borrow me a car they told me they can't assist me with one since they don't know when will they find the problem on my car..... It's irritating when one buys a car and when it has problems the people whom should help u literally don't know..... And when it comes to communication it's the worse at ford for u to know the status of ur car you should literally walk to ford or call for them to assist you! I so regret trusting and being a family member of ford, ford had became my key note to stress n frustration.....