If they gave less coins back, then that is a scam. If they gave a USD value back then that is sketchy. This is why you need to do research on the team, if they are sketchy dont invest. It is pretty easy to tell when an ICO is going to be shitty.
Yeah but hold on, Im in a Euro zone country, if I pay for something in dollars I expect to be refunded in Dollars. If the Euro gets stronger, I dont have a right to request my refund in Euro value equivalent to the time of invest.
They invested with BTC, if they invested 1BTC 6weeks ago, then they should get 1 BTC back. If BTC went to 40k, should TokenPay work out the value and pay them back 1/2 a bitcoin?
Investing is risky, the USA is clamping down. Either people want regulation or they dont. You cant scream foul when you lose money. Same story over and over.