Shocking service!!!

I was third in line from the front. It took almost 20 minutes to get assisted. Just to be told that I must collect the parcel at the back. The door gets shut in my face- I knocked after a few minutes to be told rudely that they are looking for the parcel, which took roughly 7 minutes. This is shocking!!!! Click and collect experience was anything but convenient. No sense of urgency to assist customers!!