BAD SERVICE

I was out at Jabulani Mall,McDonald's last night. I bought food then went to the bathroom. I came back, got the order then ate, as I was eating the cleaning lady come and insinuated that the order wasn't paid for...I showed her my banking app that indeed the transaction went off of my account. I finished the food and went again to order for my daughter, as I was waiting for the order she(the cleaning lady) still made remarks and comments about the order I first made. How can I sit and eat knowing very well that the order wasn't paid for. How can the transaction show on my app and money be deducted on my account if the order was not paid for. No apology was given and the service and experience was absolutely ****!