SG cut my value of contribution in half! And cut my level!

SG cut my value of contribution in half! And cut my level!
I took the game from the list of non-bandled games on sgtools.info, I bought the key and made giveaway on SG. The game costs 40 points on SG, the giveaway was successful and without any questions, and my Contributor Value was $ 40 for games, so I started buying new copies and giveaway them on Steamgifts. And a few days later you just cut the cost half and less. What have I spent my money for when I purchased the keys? It looks like a scam.