HDFC Bank — OFFUS EMI LOAN CANCEL is showing as outstanding

Address:

Pune

The first transaction was completed on[protected]
[protected] AMAZON SELLER SERVICES MUMBAI 43, 229.78 Dr

This was converted to EMI on[protected]
[protected] AGGREGATOR EMI - OFFUS (Ref# 09999999980217000061623) 43, 229.78 Cr

I returned this product to Amazon and refund for the same was completed on
[protected] AMAZON SELLER SERVICES MUMBAI 43029.78 Cr

After this return, I could still see that EMI installments were still getting charged to my account. For this reason, I opened a request for a reversal.
Now, in the statement for the month of May, I can see the reversal for the EMI installments, but I also see that the original principal transaction is charged as Debit to me again.
[protected] OFFUS EMILOAN CANCL[protected] (Ref# 09999999980424001037764) 43229.78 Dr
[protected] OFFUS EMIREV PRN:[protected] (Ref# 09999999980425001037712) 7061.43 Cr
[protected] OFFUS EMIREV INT:[protected] (Ref# 09999999980425001037720) 483.48 Cr
[protected] OFFUS EMIREV PRN:[protected] (Ref# 09999999980425001037738) 6968.52 Cr
[protected] OFFUS EMIREV INT:[protected] (Ref# 09999999980425001037746) 634.02 Cr
[protected] OFFUS EMIREV PROC[protected] (Ref# 09999999980425001037753) 199 Cr

I do not understand the reason for this debit entry, especially when Amazon has already completed a chargeback on the original transaction.
I tried to speak and explain the situation to the customer care representative but they failed to offer any resolution on this subject.