Poor customer service from Abdul Omarjee of Freeway Toyota, Booysens, 2016

I contacted Abdul Omarjee on 24th August via mail for the price of radiator. He responded same day with the response of it being available based on the the previous day's stock count. I asked for invoice to pay and he did send it same day. I made payment on 25th August with the hope of picking the item. I sent evidence of payment to Abdul but he didn't respond to my mail. On the 31st of August, Abdul sends a mail saying Toyota has given an ETA of 11th September for the radiator. I sent a mail on the 11th of September as a reminder but that is also yet to be responded to. Most of my mails go unanswered. I contacted Freeway Toyota on their whatsapp number and I was assured Abdul will respond to my mails but still he doesn't. I need to communicate with my customer but I have no information to pass on since Abdul will provide none. Now, I have to refund to my customer.