Withdraw: Fee more, and then again more, and again.. SCAM?

Hello, please help.
I want withdraw SJCX, counterwallet write me “insufficient BTC at address. Need approximately 0.0005 BTC”.
OK, i sent in my address 0.0005 BTC…
counterwallet write me “insufficient BTC at address. Need approximately 0.00073 BTC”.
i sent in my address 0.00023 BTC…
counterwallet write me “insufficient BTC at address. Need approximately 0.00113422 BTC”.
It is obvious that I can transfer all my money here and it be want more and more.

How much money do i need to withdraw 13 sjcx ?

THIS IS SCAM ?

Looks like a bug in the approximation calculation. Can you try to set fee from normal to low when sending SJCX?

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