You’ve been scammed. Create new wallet and repeat step 3 and 6 on mainnet checklist. Then once your locked pi in old wallet transfer it to any exchange. Never share your keyphrase

Can anyone help me understand this migration process? I initially had 214 mined Pi and then migrated to mainnet but after the migration 20 has been transferred to someone wallet address and when being checked closely it is mentioned that the wallet is public. I'm confused here 🙄