I contacted the support team. After some investigation, they said that the problem is tied in with the CRA site being down. They said I should be able to import my last years data from my computer when the CRA site/Netfile goes back online on 19Feb2024. I guess I will find out on 19Feb, meanwhile, I can't access Turbo Tax Premium online even though the packaging says it will be accessible from 15Dec2023 to 30Nov2026.
