Dont worry buddy. I had nearly 80k in sc just up and poof.
The transactions were on the explorer, i took screen shots and reported them to sia. They said it would clear, days passed and still nothing.
I asked again and they said 'reload' your wallet by uninstalling and resynching. Then low and behold no coins at all.
The transactions and everything were 'fixed'. Something fishy going on here.
Now I dont fet answers to any of my emails.
Sia has some real issues.