How can I get my money back?
FORSAGE is decentralized platform that process direct peer-to-peer transaction exchanges of its participants. So, every time you register or activate any level you send TRX or ETH directly to participants addresses in these networks. The rules of exchanges are determined by Forsage matrix marketing. During this the balance of smart-contract remains 0 - it is not holding yours or any other participant's assets.
So you can't directly refund your spent assets. Directly not - but you can always follow the original idea of Forsage community and start to research about how it works and how to set up your income with your team growth. Then you will receive much more compared to what you spent on your registration and level upgrades.