Complaints!!!!

Dear all, I hope you are well. My name is Armand Bahini and I came to South Africa on Tuesday 16/02/2021 at 5 AM via Ethiopian Airlines ET 916 and ET 854 flight from Cotonou passing by Addis Ababa. My travel bags were rather placed on the flight ET 809 coming the same day at 13 PM. I then have to wait for my bags to be delivered at my home address 19 1st Avenue, Westdene, Johannesburg. This was done on Wednesday 17/02/2021 around 11 am. I realized that one of my bags was rather light and once I opened it, I could see that several items were missing. I would like to find out what happened as this is not the first time it has happened to me on Ethiopian Airlines. I filled a claim form sent to Meshech Soobramoney (Ethiopian Airlines agent) more than a week ago but nothing up to now regardless my numerous emails and calls as follow ups. Please help. I am looking forward to hearing from you on this matter!