Disappointed in Clicks Online

I am a very loyal Clicks customer. Every month I buy my toiletries at Clicks. I decided to try out the Clicks online shop this month, but very disappointed. I placed an order on Clicks online the morning of Friday 26 June 2020. I immediately realized the delivery address was incorrect, so I emailed Clicks, as well as phoned them to try and change the delivery address. The Clicks Customer Service Consultant informed me that they could not change the delivery address. I then had to contact the courier service and ask them to change the address. Now instead of my order being delivered between 1 to 3 days it took 5 days. I am not sure what was the trouble in just changing my delivery address, as I immediately contacted and emailed Clicks when I realized the delivery address was incorrect.