Did the previous owner obtain permission from the owners corporation to adhere tiles to the common property floor slab? Was a special by-law registered giving approval for the changes to common property?
If the answer to these is no then you need to demand that the owners corporation address the issue.
If there has been an agreement through CJC(CTTT?) for them to place down floor rugs it seems that the problem has been identified. If this has had no effect then you should take the next stage and demand that the floor is returned to it’s original (presumably carpeted) state.
If the leasing agent has arranged the works without going through the proper approval channels and if this is the same agency who is the strata manager there is a significant conflict of interest here.
If the strata manager will not recommend to the owners corporation to initiate action via the CTTT then you should go straight to the executive committee.
It is likely that this is not only a breach of s117 but of 65A also.