Pathetic Customer Service!

My mother, LCL Naudé, has placed an order at home choice and requested that she wants to change her delivery address. They gave us an email, Saturday 24 November 2018. She phoned them on the Monday, 26 November 2018 to confirm and they said they did change the address. On Tuesday, 27 November 2018, she received a sms that states the delivery address, which was the wrong one. She phoned the customer service and was yelled at, ofcourse my mother would be upset, but that does not give those employees any right to speak to customers like that. We did not cancel our order so hopefulle it will be delivered to the right address. Super disappointed!!