Hi Coinpayment!
I participate in airdrop and get 100 cps, i want to sell it to my friend 1 also on coinpayment, i filled in "coinpaymentsnet" address and their memo (exactly?), But the platform requires sys do transaction fee:
1. What is the transaction fee?
2. what do i have to do sys do transaction fee?
There's more:
_How long does p2p exchange take to transfer cps to another coin?
_What is the fee for charging coin?
_The fee to withdraw coin (ex: bitcoin) will use sys or bitcoin?

I also like a lot of people are not used to coinpayment, you can answer here and many will find and use it.
Thank you!