Tip Jars

So Sasol (madelief centre, pta north) is close to me and I have been using them for some time now. Never had issues. These days I am avoiding filling up at Sasol. Went there twice and the attendant gave me a tip jar. He took it and placed it on my door and asked me to fill it. When he came back he asked whether I filled it and I said yes even though I didn't. He then said he didn't see me insert anything. I then left very irritated. Went there again to find another attendant. While paying I gave my bank card. When I wanted to take back the card he gave me a tip jar. So now I am making use of the competitors a little further away as they are not sticking a tip jar in my face and I don't need to pay charity