I think you are trying to sell the free gatehub accounts
The 30 XRP reserve can not be transfered/used .The value is zero
If you had found a solution ,you would not have sold them
They are not gatehub accounts, but regular wallets with 20 xrp in each. And as I've put in the op, it's an investment for the opportunity to withdraw the xrp when the reserves are lowered.
The value is not zero. Thank you.