Doesn't have all required accessories to fit Mag Wheels sold

Take note that Renata Tires Randfontein doesn't have all required accessories like the lug nuts that's so posed to go with the wheels you bought from them. After the installation we needed 8 specific lug nuts to finish up. They installed 8 other second hand longer one's with the promise to me that they would order it and send it. After a 3 week hence and forth with them about it nothing seems to have happened and now they requested me to send them a pic of the lug nut. Really are you not the professionals here. I asked all of this questions before I came to shop as driving a 100km from Pretoria is not something I want to again because of missing parts.