Advance Training Harbin provided defective product

I've received an email from Patricia Walker at Advance Training Harbin offering a partial refund, but I believe I'm entitled to a full refund given the circumstances. The athletic shoes was clearly defective from the start.

Dear customer, On behalf of Advance Training Harbin, I would like to personally apologize for the inconvenience you've experienced with our design service. 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 expedited shipping to address this situation. Additionally, we have documented this case (Reference: REF-0FB94B52) 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, Robert Clark Brand Representative Advance Training Harbin