Traveling through Cologne with a VRR ticket?

Hello everyone, I'm currently studying in Wuppertal, and the university gave me a semester ticket. This is valid for the VRR (public transport system) area. However, I come from near Cologne, or rather a little outside of Cologne, and on trips to Wuppertal, where I was usually checked in the Cologne area, or even before…

Am I not allowed to laminate my semester ticket?

Hello, Several conductors have now informed me that I'm not allowed to laminate my semester ticket. Mind you, it's a self-printed ticket without any watermarks. What's the point of that? The QR code is readable. There's no mention of that anywhere. Back when tickets were still issued by the railway, there were holograms for authentication….

Can I take someone with me on the train with the NRW Semester Ticket?

I know that you can take one person with you on the bus with your semester ticket, but can you also take one person with you on the train? Some of my friends said it's possible, while others said it's not. By the way, I go to university in Münster. Thanks for all answers