Concatenate distinct values from column in Measure

Hi,

I've a table (UserPermission) with 3 columns (USERID, REGION, DIVISION). i need to filter out the data for a particular userid connected to the server and then create a measure for Region and division. Below is how the data looks like 

I've tried using the below query, but the issue here is it doesn't return me the disticnt values.

RegionMeasure:= 

CONCATENATEX(FILTER(RELATEDTABLE(UserPermission),UserPermission[UserId]=USERNAME()),UserPermission[Region],",")

output expected - Americas

DivisionMeasure:= 

CONCATENATEX(FILTER(RELATEDTABLE(UserPermission),UserPermission[UserId]=USERNAME()),UserPermission[Division],",")

output expected - Globals,Americas    (order doestn't matter)