Delayed delivery from The Education University Marseille

The situation with The Education University Marseille has gotten worse. Now they're claiming I never purchased the loyalty program, despite me providing the receipt and reference number REF-1A9E8442 multiple times.

Dear valued customer, Thank you for your complaint regarding the sweater you purchased on March 28, 2025. At The Education University Marseille, 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 $494.83 2. A replacement sweater with an extended warranty 3. A store credit of $494.83 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-1A9E8442. We value your business and hope to restore your confidence in our company. Best regards, Rowan Davis Customer Success Manager The Education University Marseille