Unslotting at the moment is a rather time consuming process for the GMs. We do charge a premium for unslotting simply because it is a premium service and not required to enjoy the game, but at the moment most of the price is due to its time consuming nature.
Changing the order of cards is unfortunately just as time consuming as uncarding a item, as a GM would have to spawn the item + the cards and exchange them manually, so offering it for cheaper or for free would not make sense ( as the same amount of work is involved ).
This means, the only way would be a unslot. Sorry.