Norwegian Tax when PAYE

Hi Guys. Last year while working in Norway as PAYE staff, I assumed my company was sorting all my tax affairs out. They are constantly bad at assuring things then not following through, so i don't know why i trusted them this time. Anyway, everyone that was working for them during that season is being bombarded by the Norwegian tax man saying we owe them money. The company originally buried their heads as usual and refused to answer anyone's emails. They now say they are looking into it but havnt given any real details. I think its wrong that when you are sent somewhere to work as a PAYE employee you have to sort out your own tax affairs. Has anyone else been in Norway recently and had letters for the Tax man? How did it pan out in the end?

Thanks in advance.