In reply to Bottom Clinger:
> Your contract is with Mammut, but you will need to contact the delivery company to check where the package is.
You don't have to. I've had this before with a package that was taking forever and I just couldn't be bothered fighting for. I cancelled the order and bought somewhere else, and then when the cancelled one did eventually show up I refused the delivery so it automatically got returned to sender.
Obviously punching in a tracking number is easy, but any problems are mammut's problems, not yours.