Cashkaro mailing system allegedly hacked, sending spam mails daily

Usually for most websites , when a subscriber will unsubscribe , they do not receive any promotional email in future
However for the cashkaro website, members have been getting promotional emails daily in September 2017 despite unsubscribing repeatedly
It clearly indicates that the Cashkaro mailing system is allegedly hacked , that members on the mailing list are unable to unsubscribe despite clicking on the unsubscribe button repeatedly
Screenshots of the unsubscribe message can be provided as proof
Are other members also facing the same problem
If Cashkaro is not able to fix the problem of sending emails, it will be reported to Spamhaus