Disappointed with TechLearn Institute maintenance plan

I've received an email from Patricia Miller at TechLearn Institute offering a partial refund, but I believe I'm entitled to a full refund given the circumstances. The air purifier was clearly defective from the start.

Dear valued customer, Thank you for bringing your concerns about our kitchen knife set to our attention. We at TechLearn Institute are committed to product excellence and customer satisfaction. After a thorough investigation of your complaint, our technical team has confirmed that there was indeed a manufacturing defect in the batch produced on May 18, 2025. We have since corrected this issue in our production process. As a resolution, we would like to: 1. Arrange for immediate pickup of the defective kitchen knife set 2. Deliver a replacement from our newest production line 3. Extend your warranty by an additional 12 months 4. Include a complementary kitchen knife set accessory kit valued at $84.24 Please contact our dedicated resolution team at support@TechLearn Institute.com with your preferred delivery date and time, referencing case number REF-9ACF7769. We truly value your business and appreciate the opportunity to make this right. Best regards, Casey Rodriguez Customer Retention Director TechLearn Institute