KyoKaitou2

Okay, so, I just set the name I wanted to go by. It stayed for a while, but, now I have to wait ANOTHER 7 days to change it again, because it disappeared, again. I tried to set it last week, and it did the same thing. I don't know what is happening, but it is getting annoying, in all honesty. I don't see why it keeps disappearing, because I make sure it works. Why does this keep happening ;-;?