Dissatisfied on service

I asked the attendant to pour in R200 petrol and the two R100 notes were shown to him with points card on my hand. I know that I was audible to him because he ddnt even confirm to have heard correct information before he went to pour in. I ddnt switch off the engine because I knew it was going to be short. I realized that my gauge was passing half to 3/4 full. I press on my hooter and called him while he was not listening attentively and attending me quickly but looking up there. He came to me eventually and denied that I said he should pour in for R200. I end up paying for unbudgetted full tank money. The attendant didn't say anything showing no remorse no apology ABSOLUTELY NOTHING. He just went off as if I was wrong. I was not happy at all about his conduct. I am a regular client and it's the first time that I'm being treated with such a behaviour. Here are the details of the transaction:

Receipt 446102 SPDN *** S/N 3070 Pump 5: Tsoko