Name-tag is on the back..never on the front, so have a look at the other end of the system [front] and see if knots are showing there--normally they are bleached there and at the crown. Once the hair is cut-in and styled the knots may well be practically unseen with the hair lying on top... read the last three posts on this page:
http://www.forum.toplace.com/showthread....883&page=2
and bleaching is covered on this list :
http://www.forum.toplace.com/search.php?...id=&page=2
Bleaching is harsh on hair and can lead to premature shedding...best to avoid it if you can...try fabric-dye remover before bleaching...depending on what `way`the hair`s been coloured at the factory ..it can be `hit-and-miss`.