Warranty claim denied by Rights Practice, Practice

I've received an email from Michael Williams at Rights Practice, Practice offering a partial refund, but I believe I'm entitled to a full refund given the circumstances. The catering service was clearly defective from the start.

Dear customer, On behalf of Rights Practice, Practice, I would like to personally apologize for the inconvenience you've experienced with our training session. We strive to provide exceptional service to all our customers, and we regret that we fell short of this standard in your case. After carefully reviewing your complaint, I have authorized an immediate complimentary service extension to address this situation. Additionally, we have documented this case (Reference: REF-0EE7E710) to help improve our training and service protocols. Please feel free to contact me directly at extension 4567 if you have any further questions or concerns. Yours sincerely, Sarah Williams Customer Service Director Rights Practice, Practice