Intarday upper cicut reached

#1
Hi All,
I have short sell 200 shares of Videcon at 204.1 but the shares were not squared up since the videocon reached the upper circuit limit.Broker called me and told that shares are in auction and will be buyed at price which is higher in t+3 days.Please tell mewhy brokers will allow such kind of shares which which will make for the investors to loss huge amount of money