Minimum size 1gmt
Why not let me sell the same amount of gmt I bought an hour ago?
This only happens in kucoin or is something common in all exchanges?
Maybe sharing a screenshot could help out to know how the surface is and I want to let you know that it couldn't be able to cover the trading fee this might be the reason why you weren't able to sell back.
For instance Binance, there minimal trade is $10 anything less than that can not be able to execute and despite you bought with $10 I m sure there might be some fractions which added to buy to cover the trading fee like $10.6 the is ~ $11 so you would be wondering how could you but with 1 Unit and couldn't able to sell back.
This is more than a month old topic and probably the OP already know what's wrong since he already mention his problem on Kucoin. He probably deposit more BTC or USDT and purchase more GMT to convert his stuck balance. The OP is not active anymore so there's no need lengthen this discussion.
Let's just report the topic so that admin can see this and lock the topic immediately.