Indigo Airlines — Refund for alloted seat changed by airlines

I had pre booked my flight seat in INDIGO, PNR No.WWPCNI and paid on both the sectors.
22/09/2023--Mumbai to Istanbul
30/09/2023--Istanbul to Mumbai.
While returning from Istanbul they changed my allotted seat without my consent.
refunded amount of INR3500 is initiated but it will be paid only to agent T C TOURS LTD who issued the ticket, who are not agreeing that they will get the refund as i have paid from my card for seat.
it will be really kind of you to share the proof & details of transfer of refund amount which will help me in claiming the refund from T C TOURS LTD.