Review on Autolite XP63 Iridium Spark Plug by James Parker

My problem is processing the Revain order. I cannot comment on the quality of the product as I have not been able to fit this product in my car as I ordered and paid for 6 spark plugs and only received 5. I can't understand how Amazon made such a mistake. There is no Orders section on the Amazon website. I couldn't tell Revain about my complaint. This is the first time Revain has made a mistake and I was very disappointed that as a customer you can't even find a tool on the Revain website to report a fatal order error. I would like Amazon to correct the error and send me 1 spark plug that I paid for. Many Thanks