Citibank — refund of payment made to deactivate citibank credit card number ending 9782

Address:

122018

I had made a payment of inr 49000 to citibank credit card number 4386-*-*-9782, which was already deactivated, by mistake.
Utr no. - n[protected] of the transaction.

Now when i call customer care to explain my situation that i have made the payment by mistake and please refund the same into my citibank saving account i. E-[protected], which i have done 4 times, there responses are below-
1) date -31st dec 2018, one executive, says you will have to call citi collection centre and gives me 2 numbers to call
2) date-31st dec 2018, other executive, which tells me that it will take 24 hours for the amount to reflect in the system and then we can refund from here only and puts a comment regarding my situation.
3) 1st jan 2019, i call again and the person says that refund has been initiated you will get the amount in your saving account by 3 jan 2019 and ask me to confirm my account number
4) 4th jan 2019, i call again, now the executive is again saying that my query is forwarded to collection centre.

To my surprise, whenever i have called collection centre numbers -
[protected]
[protected]
Ivr asks me to enter my credit card number and when i enter that it says the card is not valid (Which i know it is deactivated) and disconnects the call.