For model or company inquiries
If your question is about a specific model or manufacturer, the best route is usually the inquiry action on that page. This keeps the conversation tied to the right listing from the beginning.
That approach makes it easier for both sides to understand what you are asking about and respond with relevant detail.
For platform support
If your question is about your account, onboarding, or the platform itself, direct contact is the right choice. A short explanation with relevant context is usually enough for a good first response.
When possible, include the page you were viewing, the action you were trying to take, and any screenshots that explain the issue clearly.