MCX Commodities — mistake/wrong square off, refund money

Address:

Multi Commodity Exchange of India Ltd., “Exchange Square” Suren Road Chakala, Andheri (East) Mumbai – 400 093 Maharashtra – 400 093, Mumbai City, Maharashtra

Sir
I have trade in Zinc (Sell Order) Via UpStox Traiding platform on 28/02/2019 (last date of contract) and closing time at 6:25 pm.
I have sell Zinc Intraday at 198.45(approx 6:20 pm), Trigger Price 198.90 and Target Price197.45.
Zinc market Up Stox close at 198.50 (Sharekhan market close 198.40) (6:25 pm).I had not square off before the contract time.
I saw Rs. -250/ mtm (Zinc) in my portfolio after 6:25 pm. But you less Rs. 2250/. Remember that the day Market high (198.80)
And my Trigger at 198.90(sell).why you can square me at my trigger price because market not reach any time in the day specially after my order.
If market close at 198.50(Zinc) and not hit my trigger How you can less the more money. why you does not square off me at my target when my trigger not hit.
Please Correct my account immediately. Thanks.

With regard
GAURANG HARI SINGH
ac/no 163181 (UpStox)
M No - [protected]