Kotak Securities — system generated order not placed by me

Address:

Rajkot, Gujarat

I bought 190 units of L. & T on 17thjan.the order was suoermultiple and was squared up @ 3.17 pm ; then one more order was executed @ 3.23 pm by the system on same day SELLING 190 units of L & T (this order was not put by me).
I immediately complianed about it to the broker.
The brikerage house squared up automatically the position next day and put liability on me ( including brokerage cost and short fall of my margin).
In addition when I took another position on Friday system did not allow me to square up even I was in profit if more than 4000 rupees.
The brokerage asked me to square up position mentioning my margin will shortfall which was due to again their system mistake of previous day.
Yet system did not allow me to square up on Friday also I again filed complain on Friday and also on Monday. Customer care executive told Mei should transfer the margin amount say almost 32000 buck to solve the issue which was clearly due to system failure.
And now I received email mentioning the L & T will be settled by auction and cost will be born by me. ( In fact the whole thing happened due to the system fault and I should not be liable for the cost)
But brokerage house tried to shrug off their responsibility.