Bad customer service

On the 15th of April I bought clothes on lay-by at exact crossing mall and went back again on the 20th April I went back to pay off and take the clothes. I must say the customer service there left me with a bitter taste in my mouth and the staff couldn't care less of my frustration. 1st we waited 30 minutes in a queue to be assisted, only to get in front of the till and told that next time I come to collect clothes on lay-by I must hand over my slip to the staff on the floor so that they can collect my parcel, mind you this is the first time I shop there and no one informed me of this process, fine. A guy was asked to go collect my clothes while the cashier assisted other people, only for him to come back with the wrong parcel because, why? They didn't even check the names and the dates, such incompetence. We were asked again to wait, a wrong parcel again was brought forward. We spent close to 2 hours in the store just to get assistance for something we were paying for and I promised myself that never again you will see me shop in any exact store. It was not even month end and there were only 3 people in the queue making me the 4th person imagine what happens there on busy days. When I informed them that I will report their behavior, the staff was not even bothered.