the details button on the package should give the exact command (do:rp:XX). u should be getting a message pop-up when typing the command if something is wrong.
I see you bought 4 items on 07.01. They are in the system and ready for you to use.
Since you did not mention what you are missing I can only guess that everything is ok.
As Bob said, please read the instructions in the Donation Details about how to receive them ingame.
do:rp:xl