Development Group Enterprises provided defective service plan

It's now been 3 days since my initial complaint, and Development Group Enterprises still hasn't addressed the core issue. I've received generic responses that don't actually solve my problem with their customer support plan.

Dear customer, I am reaching out regarding your recent complaint about our professional setup. First and foremost, I want to extend my sincere apologies for the frustration this situation has caused you. As the Client Support Executive at Development Group Enterprises, I have personally reviewed your case and have spoken with the team members involved. There appears to have been a miscommunication regarding our service guarantees, and I take full responsibility for this oversight. I have taken the following immediate actions: 1. Processed a refund of $497.35 to your original payment method 2. Added a $497.35 service credit to your account for future use 3. Implemented additional training for our staff based on your feedback Your case has been assigned reference number REF-E0BE0EDC for any future correspondence. Please allow 3-5 business days for the refund to appear in your account. Thank you for giving us the opportunity to address this matter. Your feedback helps us improve. Sincerely, Alex Thompson Client Support Executive Development Group Enterprises