shop Mtx 0 coins (not really)

If you look inside the mage armour packs, the individual pieces of the bundle cost 0 coins. But if you buy them for zero coins, x amount of coins (I don't know how many, but probably normal price) is still subtracted from your coin total.

PS,
If I don't want the mtx, where could I try to get my points back?

Same issue for me. I rather have my stash tabs.. :) But i was like, for free i go for it.