Here is a useful hint during investing in the sexService ICO.
It is not necessary to transfer exact amount of coins. For example, if you willing to invest 0.345 BTC, you can send 0.3446677 BTC or 0.34522891 BTC, our system will process your payment anyway! So, you can pay from any exchange and not taking in account the fees. And yes, you can pay from any wallet or exchange.
See more about how to join the ICO.