cashier giving bad attitude

i was doing my shopping at Game south Gate, as the cashier that was assisting me was still busy scanning and packing the other one just next to the one i paying at just Rudely pushed my trolley away from where i was standing till #***8 and left it next to the jewellery counter, i thought she would have the Decency to push it back upon returning to her workstation which was behind where i was standing as i was paying, how ever she just left it there, when i confronted her that how can she push the trolley away while we still busy packing she just gave me an ugly look, i felt leaving all the merchandise that i had bought, however that would not change anything as she will continue to treat other customers like that, it's how ppl always complain how they need a job however once they have the job they will treat customers like ****,i would like to advise Management at Game SouthGate to Advise their staff to learn people skills as this will kill their store productivity it starts with one unhappy customer to spread a bad service then the rest won't suppoort.