Profile Manger / Exchange packages

I'm having a problem where after a device has been assigned to a user and the Exchange payload has been sent to the device i can't get the device to read the variables and change the user infomation.

I have a device group created named Exchange users which has the one payload to confure the Exchange active sync fo iOS. When I have an iPad authenticate to Profile manager and a user is associated with the device when I go to delete the profile and assign to a different user the email varibale is still populating to the first user.

I'm filling in the domain name, and placing %email% for user and email address fields

An example of the problem is I assigned an iPad to Ted user tuser@ocpafl.org then I delete the device and wipe it and create a new placeholder record. When I try to assign to a different user the Exchange is still stuck with the tuser@ocpafl.org info.

Please help if you know the answer is this.