Amazon India — not servicing order and not allowing to cancel too

Address:

Sholinganallur, Chennai, Tamil Nadu, 600119

I had ordered a shoe rack over Amazon early this month.

Order#[protected]

It was delivered on the 10th of December and it was mentioned that the Assembly service will be provided free of service.

It has been scheduled 3-4 times now and no one has contacted me yet.
Today morning It had a call with Amazon customer support where i complained again for this issue. I am being told that this is an issue from the vendor side and nothing can be done about it. Then i was assured that it will be done today which again has turned out to be a lie. How many times would you want a customer to get cheated?

I ordered on Amazon and not with a vendor. That was under the assumption that an international company like Amazon would take accountability and do an end to end service. But till now no one seems to care.

I am now left with no choice other than return the item. But now even that I am not being allowed.