Security guard grabs my itema i paid for

I went to Shoprite liqour at delft mall now to buy cigarettes... upon arriving there, i saw this young security guard arguing with a client and being very verbal... making statements like i dont care. I bought my cigarettes and left the store and threw my slip in the bin at the door as im leaving the store. The security guard shouts at me " hallo" i need ur slip... i turn and tell him i threw it in the bin and i go to the pie store next door... he follows me into the store and shouts at me he needs the slip. He then makes a move to pull the 2 packa of cigarettes out of my hand... i tell him he cant do that im no longer in shoprite... yhis guard has a bad attitude and treats shoprites customers like *******.... aays what if i didnt pay for it...