Mansion at Cozy Chiang Mai refused to address issue

The situation with Mansion at Cozy Chiang Mai has gotten worse. Now they're claiming I never purchased the expedited shipping, despite me providing the receipt and reference number REF-E77DB99F multiple times.

Dear valued customer, Thank you for your complaint regarding the jeans you purchased on April 30, 2025. At Mansion at Cozy Chiang Mai, customer satisfaction is our top priority, and we take all feedback seriously. We have thoroughly investigated your case and have identified the source of the issue you experienced. We would like to offer you the following resolution options: 1. A full refund of $258.25 2. A replacement jeans with an extended warranty 3. A store credit of $258.25 plus 20% for your inconvenience Please let us know which option would best satisfy your concerns by responding to this message or calling our dedicated customer resolution line at 1-800-555-1234, reference number REF-E77DB99F. We value your business and hope to restore your confidence in our company. Best regards, Avery Anderson Client Satisfaction Manager Mansion at Cozy Chiang Mai