Spin off

Hi,

10 days ago I shorted sell a stock after 2 days it dropped around 30$ so I bought back making 100k profit, started to trade the same stock as day trader, paying commission as well. On Friday (yesterday), my account became negative 50k from over 150k positive, so I chatted with Thinkorswim… They said the company had a spin off the day I shorted the stock, I shouldn’t make 30$ per stock, well nothing prevented me from buying the stock , they cannot adjust after a week as they allowed me to trade all the week same stock paying commission, now I have to run and find a lawyer to get me money back.

Anyone had this experience before?

It’s “$30”, not “30$”.