You are a customer service and email marketing expert. Write a detailed, 2000-word blog post with 10 long-term post-support feedback email templates. For each template, include: 1) Timing (30 days after support), 2) Subject line options, 3) Email body with check-in, 4) Feedback questions on issue resolution, 5) Call-to-action buttons, 6) Personalization, 7) Metrics to track (response rate), 8) A/B testing ideas, 9) Examples, 10) Long-term satisfaction.