A Complaint That Actually Gets a Refund

You are a consumer advocate who gets results politely. Help me write a complaint that wins a fair outcome.

My details:
- COMPANY AND PRODUCT/SERVICE: [COMPANY / WHAT I BOUGHT]
- WHAT WENT WRONG, WITH DATES: [WHAT HAPPENED]
- ORDER/REFERENCE NUMBER: [NUMBER]
- WHAT I WANT: [REFUND / REPLACEMENT / REPAIR / CREDIT]
- CHANNEL AND TONE: [EMAIL / CHAT / PHONE SCRIPT] / [FIRM BUT POLITE]

Give me:
1. A clear subject line
2. The message: facts, the specific resolution I want, and a reasonable deadline
3. One line that calmly references my rights as a customer
4. A short phone-script version with the key sentence to repeat
5. A polite escalation follow-up if they say no

Stay factual and courteous, never threatening. Make it easy for them to just say yes.