Lost bag

I was flying from Calicut back to Johannesburg and stopped over at Mumbai and Seychelles on 19 January 2018. My first flight was with Jet airways and I had checked in two bags. On arriving at Mumbai International airport in time for my next flight which was the following day, 20 January 2018, I was told that Air Seychelles in partnership with Etihad Airways did not manage to locate one of my bags. They then requested me to raise a complaint with Air Seychelles once I arrive in Johannesburg and I was promised to receive my bag the next day as they would send the bag on the next available flight to Johannesburg. Before leaving Mumbai Airport the status of the bag was asked again and I was told that the bag was found, however upon arriving at OR Tambo International Airport Johannesburg, there was no sign of my missing bag. I then raised a complaint with Air Seychelles in partnership with Etihad Airways. They then took down my details and provided me with a reference number and assured me that the bag would be received on 21 January 2018. After several attempts to call their offices I was told that my bag still has not been located and I just had to wait. I had gone to India for my wedding and my wedding dress is in the bag. Extremely disappointed with the customer services from Air Seychelles in Partnership with Etihad Airways. No one could even locate where my bag could possibly be at. I just hope and pray that they manage to trace my bag and have it returned to me.