Please come back to me

I am a regular customer at La montagne spar and i do not like how the cashiers make remarks when i am at the till , i buy electricity there all the time and each time i am at spar they refer to me as electricity , shouting out very loud electricity in their language , this is such an embarrassment , i fail to understand why they doing that , can management please call them to order my number *** ( La montagne in Albertus street Pretoria east)