Nivea — I am complaining about the Nivea Body Cream Cocoa Butter

My family only uses the Nivea Body Cream Cocoa Butter(400ml)with deep moisture serum.
Its the 2nd month now that I have noticed that the tubs are half filled.I am paying around R42.00 per tub.I usually buy around 8 per month because the are we live in is very dry.We use this product a lot.