HDFC Securities — Refund not issued after so many days

My trade ID 4764664.
I am Vidya . i had tried to buy 3 shares of Britannia industries limited on 7th april and it got expired for which my money didnt get refunded. Also i tried to buy same shares but 5 numbers again on friday evening 8th april 2022 later cancelled the order since it was an offline transaction, but its not reflecting on the software. nor in booked item nor on cancelled item. but the money is deducted from my hdfc account. i haven't even got refund. I lost around 26k rupees in total. please help me in resolving the issue. as per hdfc policy the refund should be done in T+2 working days. At least I should have got refund of the first transaction on 7th.

thanks and regards
Vidya