Urgent Resolution Required for Missing Inventory

I am a new seller with Amazon and recently sent in my inventory to their fulfillment center. Unfortunately, approximately half of my stock has gone missing, and the issue has remained unresolved for over a month. I have made numerous attempts to seek assistance; however, my case is still pending. Communication with Seller Support has been extremely challenging, as calls are frequently disconnected and I have struggled to receive clear and effective assistance. I urgently require a resolution and the recovery of my missing inventory. It is very disappointing that an organization as large as Amazon has been unable to resolve this matter in a timely manner. Effective communication and prompt issue resolution are essential for a successful business partnership, and I hope this situation can be addressed as soon as possible.