Endless Spam Emails from Flipkart

Im so done getting spam emails from flipkart which don't even mean anything i have tried everything from unsubscribe to at last blocking flipkart nothing is working.
Everytime i check my email if there something important there is this goddamn stupid flipkart with there stupid spam mail i don't even shop with flipkart.
I have deleted hundreds of spam mails from flipkart till now.
if someone know how to fix this let me know.

https://preview.redd.it/q4uej4c7rz5h1.png?width=1920&format=png&auto=webp&s=58790c8bc27ae2fa09bd02d1866c43c5e60e94fc