The official channel is through Naim support via phone or email, although if you post details of the station here you may also get a response from @Stevesky.
You could also approach the station and ask them why you can get it to work with Tunein but not vTuner.
Thank you for the tips. I actually forgot Naim internet radio is via vtuner, I checked the station (The beat 92.5 Montreal) via https://naim.vtuner.com and it doesn’t work neither. I contacted the station with no response hence why I thought checking here.