Amazon India — sabar healthcare sauna slimming cellulite fat melting (amazon)

I bought this product named "sabar health care sauna slimming cellulite fat melting" from (Amazon india) dated on 6th feb 2019.

1) this product is not at all useful and it caused burns on my stomach n lower abdominal part in spite of wearing a towel. As it is not serving the purpose and on top of it i underwent hospitalization due to burns i mailed them raising a complaint writing to amazon. Since then back n forth mails and number of calls to amazon customer care but there is no proper response from them. I need a proper resolution for this and want to state you that this device has left me with burns. Below attached are the mails and pics related to this.
2) main concern is it reflects on the app that "this product is eligible for 10 days return policy" but when i approached them with utmost patience even though i got affected, they don't refund my money and immediately the image shows that its not eligible for return policy...

I request you people to look into the above mentioned 2 issues and quick solve this.

Thanks & regards