Hi @Ste148
Welcome to the Sonos Community!
Sorry to hear of the issues you’ve had with adding your preferred music services.
Is your country of residence set right in your Sonos profile on the website?
@106rallye has hit the nail on the head. Qobuz is available in both Portugal and the UK, but your profile address is set to the USA!
To resolve this, please log in at https://www.sonos.com/login, then on the Profile page, click Edit next to your Address and fill out at least the correct country. Please remember to save the changes. Once done, please open the Sonos app and go to User icon » App Preferences » Reset app » Reset. Once done, reopen the app and opt to connect to an existing system. You should then be able to add Qobuz to your system.
I hope this helps.