Bad Customer Service at Caltex Wonerpark

On December 6 at around 20:45 I went to the Caltex in Wonderpark North of Pretoria. I asked the petrol attendant to fill my tank with R300 95 unleaded petrol. After a few minutes a paused from my phone call to check why it was taking so long then I realised that the attendant has filled my tank to R643 I immediately stopped him and asked him why he was going above the amount I have requested and then he said to me that I said R700 and he asked me again and I agreed. I politely told him that I would never request an amount more than I am willing to pay, so it means that there was a miscommunication between him and I. He adamantly refused that he could have heard me wrong and insisted that I said I wanted R700. I calmly asked me not throw any accusations at me since I am not throwing any accusations at him and that I do not appreciate the manner in which he is handling the matter and treating me as though I am a ********. I then asked to see the manager and I was told that there is no manager on duty in the evenings. The attended took my contact details and registration numbers and told me that the manager will call me in the morning the following day. I received a call from Solomon on the morning of the 7th December and I explained what happened and how I did not and still don’t appreciate the manner in which I was treated. The attendant was not even apologetic about what he did and kept giving me a nasty look. The manager apologised and asked me if I cannot pay the full amount. I told him that it is not matter of affordability but the manner in which the problem was handled, with me being accused of lying and made to feel like am a ********/chancer. I told him that I will pay the amount but still want an apology from the petrol attendant. My husband went to the station that evening and he asked for Solomon and was told that Solomon was not there. I am not writing a formal complaint to Caltex regarding this issue as I also believe that the mistake was not mine and I should not be made to pay the full amount especially with the kind of treatment I received.