Unhappy customer

on the 07/03/2016 I went to the above mentioned store to buy a bed. I entered the store very happy and I left with a very sad face as when the sales person was busy trying to assist me another customer came to pay his account and the cashier by the name of Natalie was not there to assist him. So the lady that was busy with me had to leave me without asking if it ohk to help the other customer with his payment. Apparently Natalie took an extended lunch that is why the sales lady had to attend to 2 customers at the same time. I felt I was being undermined as I expected to be assisted and continue with my purchase since I was in front of the other customer. So I told her that I will take my business somewhere and she asked me to leave my documents, I couldn't leave my information cause you cannot trust anybody nowadays. When I think about the distance that I had to walk back to my workplace on a very sunny hot day with a long face I felt very sad.