Schengen visas (and thus visas for Norway) cannot be extended. After you’ve reached ninety days, you have to depart the Schengen space or apply for a copyright. Thanks for giving this information about Norway’s immigration policy. I used to be sorry to browse that there's no provision for heritage. https://norwaypassportrank90011.qowap.com/90904866/the-norway-copyright-ranking-diaries