Fallen in restaurant & got the cold shoulder

My husband and I with his sister visited Friedman & Cohen restaurant on 30/11/2017. We placed an order, and after waiting almost 30 min for our order, i got up to find out what the hold up was and when approaching the counter, I slipped on the floor. The medic was called to asses me but could not do anything for me. I then went to my Chiropractor on 3/10/2017 and was informed that both my hips were out, the bill came to R1850.00 after a couple of sessions . I addressed the concern to Mr. Grant Goodwin via email whom then submitted it to their insurer SANTAM, the case was assigned to Shirene Jeffree who then advised me that "We confirm that we have been placed in possession of your claim against our insured and from the facts at our disposal and from thorough investigation of the claim there seems to have been no negligence on the part of our insured". Based on their "investigation" they hereby deny any liability on behalf of their insured and confirm that any legal action taken against the insured will be defended. Basically told me if I take the matter further they will fight it in court, something that will cost much more than R1850????? I have addressed this with Mr Grant Goodwin, as I want to know what did they investigate? To date i have not had a response. The doctor letter explains the entire diagnose. I could have gone for a full body exam if i wanted to make the matter worse, but my mission was not to try and claim , I am 74 years old!!! Disgusting lack of service and compensation from both SANTAM & Friedman & Cohen!