Will I ever get it?

Someone working for the Swedish postoffice has STOLEN my package with Gmarket goods from Korea, and the Swedish postoffice refuse to say the truth (who the stupid arse is and where he/she did to it and WHY) nor are able to locate the package!! They have been "searching" the whole day without any luck and they said they will call me 2morrow and "hope" they can find it so I can get it, however it makes me wonder how they work and what stupid staff they have! My mum said we shall sue them for this!!! I'm SO pissed off, I payed 50USD extra for tracking and fast delivery...which obviously didnt work out :/