Are you sure there is no ticket? Some systems let you make tickets that the end user is not notified for. Also, depending on the size/ levels of automation your call may have populated all your info on the agents end.

Depending on the help desk they probably knew it was you. Did you call from a phone HR knows about? If it was a walk up, did they make the ticket before or after resetting your MFA?

I don’t know what part your unaware of - so let me do the ELI5. They (HashiCorp) created a tool called teraform which is used for defining what servers/other infrastructure you use in places like AWS. Up until recently this was open source under the Mozilla license to something that’s not quite open, but not fully closed source (yet).