I've not received my online order & has been delivered to totally wrong address/area to

I Ordered a iPod touch 5th generation on November 20 2014,had confirmation email etc,etc had email to confirm dispatched on its way etc, just after 11:45am Friday morning had email/text saying had been delivered and left with neighbour(left name etc) none of my neighbours matched these names,I looked into it further & it's been delivered to totally wrong address/area/postcode,so someone is sat with my sons Xmas present that I've paid for! What can I do as delivery company saying was address Apple gave them,yet on my order etc,it's all my details and all are correct & good,how I go about sorting this as I'm owed an iPod touch 5th gen still,thanx in advance to any help