are you reference to my plugin ?
i have test it now and the tax-id in not displaying in the client edit page .
first , to debug the probleme, when you load the client side , check the html page source and see if the header has aded the css file style .
if the plugin has not worked for you , that not mean is not working , maybe there are something special for you that not let the plugin work , the same as blesta it self , so many poeple can't get it installed , that not mean blesta is not working , all my plugin i test them before any release , is there is a bug i'm open to correct it , but i can not correct something like "is not working!!" . in the plugin thread post more info that i can track or make it working for you .