Billing discrepancy with Clinic Center International medical center

The situation with Clinic Center International has gotten worse. Now they're claiming I never purchased the customization service, despite me providing the receipt and reference number REF-99F10C75 multiple times.

Dear valued customer, Thank you for your complaint regarding the smartwatch you purchased on April 21, 2025. At Clinic Center International, 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 $21.51 2. A replacement smartwatch with an extended warranty 3. A store credit of $21.51 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-99F10C75. We value your business and hope to restore your confidence in our company. Best regards, Linda Hall Customer Retention Manager Clinic Center International

ComplaintNest Administrator Alert: We have noticed that Clinic Center International has not yet responded to your complaint about their premium membership. We have sent a formal escalation notice to their corporate office and have initiated our second-level notification process. Please be assured that we are actively monitoring this situation and will take additional steps if necessary to ensure your complaint receives proper attention. ComplaintNest Advocacy Team