The "Customer Anniversary" Reward Creator

Act as a relationship builder. Help me create and announce an offer that celebrates the anniversary of a customer's first purchase, reinforcing their long-term value.

• Customer's First Purchase Date: [e.g., "One year ago"]
• Anniversary Gift: [e.g., "25% off their next order"]

Task: Write the anniversary email. The subject line should be something like "Happy [Brand Name] Anniversary!" The body should thank them for their first purchase a year ago and offer the gift as a token of appreciation for a year of support.