I was unable to travel Gothenburg to Frederikhavn ...

I was unable to travel Gothenburg to Frederikhavn as a Swedish ID card was not considered proper ID. Nothing about that on the website or travel documents. Terrible website and confusing travel documents in tiny print.

Customer Service told me that it is a common problem for would be passengers who get turned away. Since there must be millions of Swedish ID cards issued which are not valid, it should state explicitly and in large type that the Skatteverket ID card is not accepted, so that passengers would bring their passports, which is a nuisance in hot weather when people are not wearing a jacket with big pockets.

Useless and unprofessional company to fail to attend to a recurring problem. It makes you wonder about their competence generally.

This used to be a walk on, document free journey, but that is no more, thanks to useless politicians who let a situation get out of hand.