Amazon India — refund initiated but not received

Address:

wakad, Pune, Maharashtra, 411057

My order no is - #[protected]
They are saying that refund had been initiated on 26th june and is successful but still not reflecting in my account. When i called customer care, they are telling me to contact my bank but when i called the bank (Citi bank) they are asking for 23 digit arn number but amazon is giving me a different refund reference number.
No one is giving my money back

Date of incident-26 june 2019

[protected]@gmail.com