i use PermissionsEX and NameTagEdit

1- /nte group add member
2- /nte group member prefix '&7VIP &7'
3- /nte group member permission nte.member

1- /nte group add vip
2- /nte group vip prefix '&aVIP &6'
3- /nte group vipp permission nte.vip

when i go to pex and add the nte.vip permission to the vip rank

and give someone the vip rank ( the name tag edit ) didn't change his name or the tags

it's just still on member prefix

Assuming that you are using inheritance, you will need to negate your member groups prefix from the VIP rank.

https://github.com/sgtcaze/NametagEdit/wiki/Setup-Permissions