Employee not issuing the correct slip

On Thursday the 20th August I went to debonairs Montclair the one next to steers to buy pizza. After buying pizza at debonairs I immediately proceeded to steers carrying R40 (2 R20 notes) to buy ice cream. I bought 2 cones of plain ice cream and 1 cup of plain ice cream. I didn’t a name tag on the lady who was a cashier. She gave me change workout and went to the back of the store for a while and came back without giving me a slip. I then requested a slip after she was not giving it to me. I then checked the slip. The slip was only written 2 cones of ice cream and the cup of ice cream was not on the slip. I find this behavior *********. I wanted to speak to the supervisor but couldn’t at that time because I was not certain that the complaint will reach the owner of the franchise. I am not really writting this to complain but I am writting this to warn the owner that his employee is involved in a ********* behavior and can’t imagine how much money he is losing. At debonairs my slip was at 14:42 and I ordered creamy chicken triple deck large pizza. My order number was number 30 at debonairs. I immediately went to steers to buy ice creams and I was the only customer at steers. Pls pass on the message to the owner, I can only imagine how much money he is losing of profits because of this behavior