If you are receiving the incorrect pay advice in MyPay, It could be caused by the following issues:
In Employee Masterfiles in Attaché Payroll, your email address is listed against the incorrect employee record or,
Your MyPay account has a linked address that is incorrect/someone elses email address.
For Issue 1
Contact your payroll officer to advise them of the issue and get them to check in the Employee Masterfiles, Online Services tab, that the Document Delivery Email Address is correct for the affected employee(s).
For Issue 2
Access your MyPay account and unlink the incorrect email address as per the section in the article link: Un-Link an email address to your MyPay inbox.