Nestle Lactogen baby formula

I am very angry at the fact that you spend so much money on baby formula and the tins are becoming less and less. I bought a tin today and it was just over the half filled with milk.... How even man, is the tin not supposed to be full? My baby uses a 900g per week but this tin is definitely not going to last a week. Nestle, DO BETTER!!! Please contact me to fix this!!!!