Maintenance for the week of March 25:
• [COMPLETE] ESO Store and Account System for maintenance – March 28, 9:00AM EDT (13:00 UTC) - 12:00PM EDT (16:00 UTC)
You bought ESO: Morrowind for PC/Mac correct? You said you 'logged into your ESO account to redeem'. Double check to make sure you got the PC/Mac version.