Is it a tenants responsibility to pay Rates and Taxes?

I am renting a commercial building for R28 000 per month excluding Water and Lights of which I am satisfied with. I paid the utilities as per Statement not being aware that I am also paying rates and taxes for the Landlord. I was wondering why I was paying so much on water and lights. With this finding I approached the Landlord and explained to him that for the past 17 months I have been servicing his account, If possible can He refund my R7283.56 X 17 for same as it is not my responsibility as per Lease Agreement. His answer was "I don't wanna be involved". what must I do to recover my loss?

The municipality had cut off my electricity and water due to same, PLEASE HELP.