Hello,

Thank you for your questions.
According fixed fees, we are talking directly about service 0.5% fee. Blockchain fee is not fixed. Like a client you should pay before invoice expired, right.
Our service is really suitable for high risk projects. First of all, you won't spend a lot of your time to connect payments for your high-risk project in traditional way. Also KYC is no need process to use our service. Simple words safe and fast.