Part of package ******/lost and delays costs me dearly

My package did not get delivered on time and when I started to enquire about it, I was told that the package which contained 200 sachets of a hydration supplement had been opened. There were only 90 sachets left! The 90 sachets were delivered to me two weeks after it was originally sent later after many emails asking what is happening. With the package I also were waiting for an important document that had to be sent to the UK. Due to the delay, I missed the opportunity with a friend who was going and who would have taken it with her. I then had to pay couriers fees to get it to the UK. In total I have lost R1600 and of course no reply on emails sent, not even an apology!