Advice about binance P2P and banks

Hi, I'm doing p2p in some centralized platforms (Binance), I just lately began to maneuver high volumes similar to 60Okay USD each 2-3 days. The began to ask where the money is coming from, I have no replied since banks in my country usually are not crypto friendly, some suppliers of crypto that I have, (additionally they do p2p) began telling me "You could create a business account and start justify the transactions of selling/shopping for crypto by creating invoices for providers", my question is, will this no carry a legal concern? I mean i do know isn't illegal lying to a bank, but if they do some sort of due diligence that may give me some troubles sooner or later?