Thing is, the cargo hold is not "heated up" before take off. They open the doors, load the cargo and whatever the temps are once they close the doors, that' the temps it remains at for the duration of the flight. That's why it is so important to know what the weather is like when shipping. It's the responsibility of the exporting party to properly heat or cool the package as is needed. I know it sucks, but I've inquired many times as to the policies of airlines and it's always the same thing as stated above. It's always the shippers responsibility, so that's where your compensation is to be found.