Donator rank problem [please help]

Hello im using enjin for my donator system. So say i have 3 in game ranks:

1. member
2. builder
3. citizen

Now! im currently builder. and when i buy a donator rank.. the rank can be [vip] for example. so i have the vip prefix and evrything. then after it expires. i get put back to member when i should get back to builder... How can i fix this. Please someone help me on this!

Fixed!

EDIT by Moderator: merged posts, please use the edit button instead of double posting.