I've had a similar situation on Polo with Sia Coin about a month ago. They completely disabled my ability to move the coins. Also today for about 15 minutes I got an error message saying that I was "temporarily banned from the website by the owner". Later I was able to log on only to see that they were having all types of issues on their exchange. Good post.
exactly, i had the same situation vith SC (maybe we've heard each other yelling at them :)) it flew from 615 sats to nearly 700 when wallet was "temporarly disabled"