Yes, we have a free $300 Credit and also Always Free Cloud Services just like other Cloud Vendors, give it a shot. (PS I work at Oracle). https://www.oracle.com/cloud/free/
So yeah, that should give everyone a pretty good idea of their reliability if they are not multi-million dollar customers.
I never had such problems with any other hosting company. I'm live between different countries so I registered it anyway, but still...
OFC I'll try to do it again, but I wouldn't be posting on HN in first place if support would give anything like a useful reply.
Also I found instances becoming unavailable randomly for no apparent reason so I keep my testing VMs on $5 Hetzner instances.
And yeah no way to run own mail server either because editing of reverse DNS records is not allowed on always-free tier.