Disrespect and swearing at a customer

I just came to fill up gas at a petrol station shell service station in Constantia service station just off the freeway in 14th Avenue, i was disrespected by a petrol attendant called SANELE on September 4th, he told me hushly to move for another car to fill, move move move this car must fill before you mind you i came before that care and when i ask why he changes his face, after an exchange of me asking why is he so disrespectful he say nxn mxm then futsk 😡 I need help with this situation and other worker there was even apologizing for him and he just waked away, after filling i say to him don't come with your issues to work he says futsk again