After a long wait, I got their reply.
Here is the mail from Getty
Looking at your account, that is what your PayPal email is set to pay to.
It looks like your account has been compromised.
I would recommend that you reset your online account password and establish a secondary password.
You will also need to update your PayPal email.
I would also suggest that you update your password for the email account that is associated to your Getty Images / iStock account.
Please let me know when you have completed this.
I will see if my manager will allow a one-time reimbursement of the payment.
Now I changed the details. even if it's compromised why there was no confirmation mail like the one I got after changing the mail. What is happening here? What should I do now?