Pregnant and badly treated

I went to Clicks at Berea Centre, Durban this passed Thursday 25/07 and wanted to buy a hair removal cream, there was a very long queue and am heavily pregnant due next week 31/07, and can't stand for long... I asked the cashier to help me pay for that one item and there was a manager right next to him, the manager told me to go hold the queue like everyone else, he said it's not like I'm on a wheelchair and can't stand on the queue... I feel I was treated badly considering the state I am in, and I don't see myself setting my foot there again...