State Bank Of India [SBI] — Refund lnitated Amazon but not receive many

Address: Sbi bank khategaon

Dear sir /ma'am
On the date of 06/5/2021 I had a purchase of boat rockerz 255 pro (products name ) from amozon online purchasing app which didn't work well. so I returned it (12/05/2021) and according to Amazon refund policy my amount will be in my bank account in 5 business day and after 5 day I got a The Refund Reference Number for the transaction is[protected].
And which generate only after giving amount to costomer which I paid for the product but it didn't show in my bank account and when I raised a complaint for it in SBI they said " it is 3rd party transactions and we are answerable to it " so I feel like money in the centre between two pillar of corporate world
I humbly request to you that resolve my issue as soon as possible and I attached some of details which you needed for this case to take action
Email id . [protected]@gmail.com
Phone number.[protected]