Is the 1-week of pay withheld in January 2020 (due to payroll schedule change) issued to you when you resign/term/retire? If so, was it included on your final paycheck or issued separately.
I recently left Allstate and when speaking with benefits/HR, they are suggesting we were in fact compensated for that 1-week over the course of 2020. If my memory is correct, that is not true which is why a loan was offered. Not to mention the mass confusion and concern which led to the payroll changes being pushed back from 9/2019 to Jan 2020.