that is simple, they do not know, but what they do is track where the money is coming from, if you are expending a lot and your income, tax do not match they will start investigating with the banks, with other companies where you making those purchases, later the amazing goverment will come to you, and hit you with a WHY ARE YOU avoiding taxes and tax you for everything you purchase pay, or we will take everything even remoted jobs at some point they will ask you to give a reasoning of that money in some countries let me clarify and will want to tax you, depending the country too
that is simple, they do not know, but what they do is track where the money is coming from, if you are expending a lot and your income, tax do not match they will start investigating with the banks, with other companies where you making those purchases, later the amazing goverment will come to you, and hit you with a WHY ARE YOU avoiding taxes and tax you for everything you purchase pay, or we will take everything even remoted jobs at some point they will ask you to give a reasoning of that money in some countries let me clarify and will want to tax you, depending the country too.
But assuming the anonymous, no kyc, or visa/mastercard that simply doesnt have a name reported something, would it be the egmont group or the debit card reporting this to the government?