I have few CS currency
Do you mean boutique coins which are tradeable?
Probably yes, but just to be sure; it's a little bit confusing naming the currency (also 'cause the bounded currency is called crystals which easily can be confound with crystal-chips).
May I ask, how you converted them?
'Cause as far as I know, you do that in the Z-Shop, and converting the currency directly from BC to Crystals doesn't cause any items in your bag to appear. So I don't really understand, what item you exactly mean which can't be right-clicked. The only item I know which fits to that description are the boutique-coins themselve, so you can trade them ingame from player to player.
But if you convert them just to crystals, the currency should be in your Z-Shop. Note that you have to click on the right tag (in the upper-right task) to see and buy with the right currency.