I have found that in recent time btc phone scam has been increased a lot. Scams call people and pursue people to pay taxes and bills by btc or any altercoins. Even some asks to invest in fake coin also. Mainly the scam group target people over phone.
Has it been happened with anyone??
I never been heard of scam that force to pay taxes using cryptocurrency because it is too obvious and you can only pay tax on the government premises and they have their own cashier and payment procedure. Fake ICO is possible as a scam scheme.