Confused

I am so confused now..I went to KFC Sophia Town, I bought two box masters 1 Normal the other one was Zinger wrap box master...I received the order and both were normal.I went back to ask how do I know which one is the zinger wrap the guy asked which color sauce was the other one, I said white. He said the other one is the zinger but they didn't put zinger sauce on, so both were white sauce. I called customer service, Portia called the store, the manager explained they use white sauce on everything...I asked why did that guy ask what colour was the sauce the manager said aim not sure... So does KFC sell Zinger meals???