Amazon India — soiled supplement product

Address:

Sonipat, Haryana, 131001

My product was musclepharm wreckage preworkout.
As soon as i recieved the product from amazon i opened it it was supposed to be powder but it was all exposed to moisture somewhere in their warehouse and transportation.
So i contacted amazon as this product was not returnable and they told be that i should contact the manufacturer and if they wont help then i should contact back to amazon.
I contacted musclepharm and they told me that amazon has a return policy and i should just return the product, so i told then that this product is non returnable and musclepharm told me that they cannot do anything in this regard as all products are packed in secure environment and that this is not their mistake.
I contacted back amazon and told then this and they said that they will investigate the issue and reach me back with a solution after 5 days.
I called on the 5th day and the customer service agent from amazon india said that they will give me a refund because i recieved a damaged product and it is non returnable and that i should contact them again the next day.
So i contacted them again the next day and my call was then transferred to the specialist team and they told me that the product was delivered to me in the right condition and their was nothing wrong with it as they have checked and sent the product and that they can’t help me.
How could they know if the product wasnt all clumps inside the box as it was sealed when i recieved it.
When kept in moist conditions protein supplement powder tend to stick together so why should i bare something that is not my fault.
Its been almost one month now since i am contacting amazon and they have failed to help me.
Please help on this issue

Product cost: ₹2999
Order no.[protected]