Maintenance for the week of November 18:
• PC/Mac: No maintenance – November 18
• ESO Store and Account System for maintenance – November 19, 9:00AM EST (14:00 UTC) - 6:00PM EST (23:00 UTC)
• PlayStation®: EU megaserver for maintenance – November 19, 23:00 UTC (6:00PM EST) - November 20, 17:00 UTC (12:00PM EST) https://forums.elderscrollsonline.com/en/discussion/668861
I believe you can sub for 1 month, however that option does have an auto-renewal, according to the website. The 3 and 6 month options do not automatically renew. https://www.elderscrollsonline.com/en-us/esoplus
The ESO Plus you can buy online through Bethesda, Steam, Sony, and Microsoft is sold as a recurring subscription, so it auto-renews.
They used to have 60 day time cards for all platforms, and I think they still have them for XBox and PS4, but not for PC/Mac. You can probably get them from Amazon or Best Buy, the latter probably won't have them in stores, though.
I would not mind it if they brought back the PC/Mac 60 day cards, but I doubt they will. I know I am spending less money with them because they stopped selling cards for PC/Mac.