**** with potentially bad intentions

Yesterday a guy named Greg from sky net came to collect my GHD from my house so that it can be sent to GHD for repairs. Upon arrival he asked for the GHD, we then asked him for proof of collection or a wayvil, as soon as we asked for this he turned defensive shouting at me saying that he doesn't have one and if I ask him again then he will leave and not take the GHD, however the day before GHD had told me to insist on proof of collection so I didn't give him the GHD and told him I will not give it until he gives me proof of collection. He then started screaming at me telling me that this is not his job so I asked his name which he refused to give me so not even sure if the name he gave me later on was the correct one. I then said ok rather leave the GHD and I will call GHD and explain the story to them. I then went down and took down his number plate which is VDP 954 GP. Then his whole tune changed. He went to his car and got the wayvil which shows he had ill intentions. I am very upset about this and feel as though staff that display this kind of characteristics are dishonest and will continue to be dishonest.