I dont use this forum that much but was thinking here..
why pay $400 for something that you can do manually by yourself?

Try and wait for 4 years if you can try to rank up by your self, I think it would take more than that with merits to consider. Be warned that some legendary accounts for sale is hacked by someone and therefore would be banned occasionally due to sudden appearance when it was long gone for how many years. By the way the most important thing is, selling accounts are strictly prohibited.