Unsatisfactory resolution from Mega Materials Incorporated

I want to acknowledge that Mega Materials Incorporated has attempted to resolve this issue. However, the solution they're offering (a $114.19 store credit) isn't adequate considering I paid $114.19 for a tablet that never worked properly.

Dear customer, I am reaching out regarding your recent complaint about our loyalty program. First and foremost, I want to extend my sincere apologies for the frustration this situation has caused you. As the Customer Experience Specialist at Mega Materials Incorporated, 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 $55.85 to your original payment method 2. Added a $55.85 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-1F1A330A 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, Avery White Customer Experience Specialist Mega Materials Incorporated