Disgusted at service

So ive been a customer at figtree spar circular drive port elizabeth formany years. Growing up in overbaakens spar was a stop everyday and its alos where we do our grocery shopping. Today i was disgusted at the service i have received. Today Thursday 12 December 2019 at 11:40am I went to spar to purchase a view goods. Got to the express till i swiped and did aR100 cashback and asked if i could possibly get two 50rand notes or a loose hundred rand. The cashier at the express till said she did not have however referred me to the cashiers at the tills in the front. When i got there I had asked for change and both cashiers had an attitude, yelling at the top of their voices telling me " how can that cashier send u here shee, theres a lotto machine there why cant she take change from there" i said well she sent me here and the two of them were communicating in xhosa rolling their eyes and thats when i said you know what i never asked for a sermon on change and one of them responded" hai ke we will preach wena" and continued to make remarks in xhosa. This to me is unacceptable as I know quite a few workers there who have been working at spar for years and never have I received such disgusting service in the years that i have been shopping at spar.