So I have del taco shuttle code B and D already, and I received two more cups. I entered both codes but I have both already. The question I have is if there is anyway to tell what codes I have? They could either both be code B or both be code D or I could have one of each. Anyways I am assuming the answer is no, but now I have no idea how I am supposed to trade or give away the code keys if I don't know which ones they are. Thanks for any help!

I think the codes are related to the design on the cup. There are 4 different ships pictured, so it seemed logical that each one was A, B, C, or D. Are the new cups the same ship graphics as the previous ones?