I had 2pc MACO XI. Wanting the 3pc for the graviton beam, I purchased the third piece, Mk X, for 20 EDC. Then I discovered that (unlike in WoW) items of similar sets of different levels are not interchangeable.

-_-

Is there a way I could refund the thing for the EDC or am I up a river? It took such a long time to farm these things :'(