You are reporting with your name. Your contact details are stored separately and are only read when an investigator needs them.
Pick the closest match. The team can change it later if needed.
Keep it general. It is stored with your report and is not added to the list of types.
What happened, when, and who was involved. Include anything that would help someone investigate.
Stored encrypted and separately from the report. You will still use your reference number and PIN to sign in.