They disabled my account without any notice, I tried to login to see why my VM wasn't responding and found they'd deactivated Oracle cloud services. It's also difficult to get in touch with support as there's multiple different portals and with the cloud services disabled I struggled to find a way to raise a relevant ticket. When they eventually responded they gave some generic BS about their ToS.

My suggestion for anyone using Oracle free tier is stay on it if you want, but be prepared for the eventuality that they shut everything down without notice or access to your data.