Possible scam and attitude

I contact these guys to quote me for Bike parts. At First this person Gary were very helpfull, although he. Kept putting STUFF ON the quote witch i don't NOT require. I told him order the parts and i Will rather collect in Somerset Business Park. He refuse TO get part from Their warehouse in JHB unless i have MADE full payment for parts. The invoice he send me was a NORMAL spread sheet where about small(copy Paste) logo was ON. This Gary guy also put his personal bank details (Capitec) ON for payment. When i NOTIFY Gary that rather LEAVE the parts for everything POINTS towards a scam. He went belistic. Told me he put his bank details ON TO save cost. His MANAGER is aware that i AM waisting time. He told me i AM a little man and That i don't even have money for parts i enquire. And he have been in The Business for 20 YEARS already