Defining liabilities and claiming compensation for a personal injury

Hi,

My mother was visiting Dubai and she slipped and fell as she stepped outside my sister's apartment.

The floor outside the apartment was slippery and wet, the cleaners had removed the mat at the entrance of the door and failed to dry the floor or put any warning signs in that area.

My mother suffered severe injuries, most serious being a fracture at the neck of the femur, which required a surgery. She did not have travel insurance.

I approached the facilities management company about this, and they got the cleaning contractor to settle the hospital bill.

However, my mother has a permanent rod and screw holding her hip and femur together and will never be the same again, so I want to claim compensation.

Do I have a case to claim compensation for personal injury?

Who is at fault, the facilities management company or the cleaning company who provides the cleaning service on their behalf?

Both companies have been ignoring my letters about compensation.