Hello Shaheda
I'm not sure when this happened but if it was today there are a few things that you need to do:
1) Make sure that the accident is recorded in your Company's Accident book
2) Go and get your leg checked out either at your GP or at hospital
3) Take some photos of where the accident happened
4) Were there any witnesses to you falling - take their names and contact details
5) You say the premises are owned by the Company - so find out who mopped the floor - they can confirm that no warning notice was put out
If, by mopping the floor, the surface is left wet and potentially hazardous then the owners have a duty of care to people that may walk on the surface - the use of a warning sign is the most obvious method. The absence of this suggests that they may have been negligent, irrespective of the shoes that you were wearing.
