Amazon India - Incorrect refund received

I purchased "BrightLyt Wooden Wall Lights/Wall lamp/Wall Hanging Light/Led Wall Light for Bedroom, Living Room, Drawing Room, Antique, Fixture, Home Decor, Interior Design, Balcony, & Shades" - QTY * returned on *th Oct ****.
I raised a request to return only one Quantity on * Oct **** and the return was picked up by the delivery agent with multiple follow-ups on *th Oct ****.
The delivery agent arrived, and he asked me to return both as he will take both Qty or none. I handed over both the QTY to him (For which I have a video recording on my security camera). But I received a refund of only one Quality, I made multiple calls but no positive action since *th Oct ****.
Called on *th Oct ****: Customer support agent said they will raise the complaint and get confirmation from the delivery agent for confirmation if they received * Qty, it will take ** Hrs.
Called on ** Oct ****: The customer support agent said they didn't get any confirmation from the delivery agent, however, agreed to refund to close the case. For the same I received as below:
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Hello,

Greetings from Amazon India.

This email is with regard to your order named ""BrightLyt Wooden Wall Lights/Wall lamp/Wall Hanging Light/Led Wall Light for Bedroom, Living Room, Drawing Room, Antique, Fixture, Home Decor, Interior Design, Balcony, & Shades.

The refund amount of Rs.***.** has been successfully initiated from Amazon on **-**-****.

This refund amount will be successfully credited into your respective Bank/card accounts, in * to * business days, depending on your bank's policy.

Note: Saturdays, Sundays and bank holidays are not considered as business days.

You will also receive a refund reference number once the refund is processed.

I hope this information would help you.

We highly appreciate your understanding and cooperation in this regards.


Warmest regards,
Amazon.in
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I didn't receive any refund from Amazon,
Called on ** Oct ****: Customer support agent said that the refund is already initiated on **th Oct **** and should be reflecting money in the day, I insist to send an email for the same, but he (Ravi) refused and said they do not have such facility confirm via email, which is absolutely incorrect.
Called ** Oct ****: Customer support agent mentioned that, no refund is initiated and they will need to raise a complaint with the delivery agent it will take another ** Hrs to get a response as the delivery agent didn't confirm that he took * Qty.
I am back to the same starting point, as of *th Oct ****.
I am really frustrated and this is not just one time, it happens on every return and I have to struggle with Amazon and their delivery agents (very rude and unprofessional).

I am really looking forward to seeking your support and exposing Amazon for its unprofessional behavior and services.