Tell me pls, is it possible to use fiat money as payment method on Yoc platform?
Yes.. It depends which kind of investment are you looking for..
1. Yocoin mining(proof of work)
2. Direct buying from yochain/exchanges
3. Long term investment with monthly POS(proof of stake) i-e from company's back office.
You need to convert your fiat money to btc first..if still you have difficulty then pm me.