Frustrated with ProsperityInvest Kuching's lack of response

After speaking with William Hernandez from the Executive Customer Care at ProsperityInvest Kuching, I was told they would escalate my case, but it's been 5 days with no follow-up. This level of customer service is disappointing.

Dear customer, I am reaching out regarding your recent complaint about our upgrade plan. First and foremost, I want to extend my sincere apologies for the frustration this situation has caused you. As the Support Team Lead at ProsperityInvest Kuching, 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 $71.55 to your original payment method 2. Added a $71.55 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-A2A4586D 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, Elizabeth Garcia Support Team Lead ProsperityInvest Kuching