Wait, should I mention any alternative methods, like using a trial version? That could be useful if they haven't purchased yet. Also, make sure to use clear language and avoid any technical jargon. The user might not be tech-savvy, so the instructions need to be simple and direct. Let me outline the key points again: legal use, activation process, lost code recovery, support contact, and error troubleshooting. Yes, that covers the main aspects without violating any policies.