Sometimes making a decision to not decide is the best decision possible. I had a boss who would make a presentation to a group of us about what he wanted us to do and then he would expect us to make a major decision based only upon what he presented to us. We made the "wrong" decision the first time and he made sure we suffered his wrath. Next time we just agreed with him and we all paid the cost for that. After that, we told him that we weren't going to decide until we were ready to decide. He didn't last too much longer after that. He was promoted to a different group.
I am in exact the same situation...sending an email and asking for an answer, and hoping the item will reach before this year Christmas.
It seems you are giving me some clues,it is such a coincidence. I would ease myself by thinking it is their fault if everything is late.