Air India — Paid 2 times for additional baggage

Booking reference HQ3TT
Eticket number[protected]c1

I have paid online via AirIndia website for 2nd additional baggage's and amounts £106, £104 deducted from my HSBC Bank account though I didn't receive any payment receipts.
When I reached Heathrow airport, I was told that only 1 additional baggage is reflected in the system and was asked to pay £131 pounds for my 2nd additional baggage again in the Airindia counter at the airport. I had no other choice and have paid for my 2nd additional baggage again. Attached my Bank statements which indicates the amount deducted for my 2 baggage's and Airport Receipt for my payment again.

It occurred on: 04/09/2021

Please help me to get refund for the 2nd additional baggage that I paid again at the Airport.

AirIndia to refund for the 2nd additional baggage £131 GBP that I paid again at the London Heathrow Airport counter for which the receipt is attached.