Write Net Promoter Score Follow-Up Messages

Write NPS survey and follow-up messages for the following product:

Product: [describe it]
NPS survey timing: [e.g. 30 days after sign-up / after each transaction / quarterly]
Brand tone: [e.g. warm / professional / conversational]

Write the following:

1. NPS survey message:
   - Subject line (email version)
   - Survey question (standard: "How likely are you to recommend X to a friend or colleague?")
   - Follow-up open question: one question that gets actionable feedback (different for promoters vs. detractors)

2. Promoter follow-up (score 9–10):
   - Thank them specifically
   - Ask for a review, referral, or case study — one ask only
   - Make it easy (provide a link or template)

3. Passive follow-up (score 7–8):
   - Acknowledge they're happy but not delighted
   - Ask one specific question: "What would make this a 10 for you?"
   - Offer to show them an underused feature

4. Detractor follow-up (score 0–6):
   - Acknowledge their score without defensiveness
   - Ask what happened — open question
   - Route to a human for follow-up, not automated responses

5. No-response follow-up (one email, 5 days later):
   - Under 50 words, gentle, one question