Sherbondy Garden Center Inc.

I purchased two evergreen trees and had Sherbondys plant them. Before the end of the first year, one was dying and the other was questionable. They had me select another tree which they planted but they cut off the tip which will cause the tree to grow wide which is exactly what I did not want. The man who planted the tree had no idea why it was cut off and then mentioned that my other tree was not looking like it would survive either. I called Sherbondys and the owner told me that the tree will produce another dominate leader that will take the place of the one cut. She did not understand..I did not want a wide tree but they said they could only replace the tree once. The next year I nutured the second tree but it also is dying with only a skeleton left. I called on that tree as well and they said it was out of warranty. I have planted 10 evergreen trees on our acreage from 3 different nurseries and Home Depot. All are doing well and the cheaper ones from Home Depot which were end of season stock, have thrived. What is wrong with Sherbondys?