Harrassment at gym company

I am so disappointed in the way gym company staff does things.

I recently joined gym company at Newtown, a guy called Hlanganani offered to be my trainer. Well we trained together for 2 days.

Then on the third after training together he then asked me if whether I do mind to do a private session with him then I said yes hence I trusted him.

He then took me to some back room where he started touching me inappropriately.

I then told him that I am not comfortable with him rubbing my private parts telling me that he is massaging me.

I am cancelling my membership because guy company staff sucks.........