Worried.....

Its been a while now since i sent the letters and still they havent reached Sol. I am hoping that they just delayed cause of all the other mail being sent being december and all. i dont want the kids to wait and get bored with the project if the regular "snailmail" dont work i need to start gettin DHL to do deliver it for me. I wonder how i can make them look for it? I will give it another week