Puma South Africa

My husband went to Puma filling station Sandfontein (R510) to fill up diesel only to find that they put petrol instead of a dieswl , he was helped by Pule Tshoeu (attendant). They called the owner of the garage who was very rude telling my husband that he did not ask him to come fill up at his station. The owner is Gert Mo***eng, I need Puma South Africa to get to the bottom of this ASAP as his attitude is totally unacceptable! He is rude and has bad attitude!