If anything strange is going on, they should be able to replace losses. I'd recommend reaching out to a Mod if that's what your gut says. They will respond tomorrow. Personally, I'd wait another day to see if there is a pattern or if the issue recurs :)
okay then I have no clue how I got 1.6k cus I had -12 yesterday. It doesn't seem any of my horses were sold (thankfully) but hhh. that was terrifying. I also just sold a horse and never received my coins...