Recording Previous Employee Cash Advance Paybacks

I took over the accounting for my mother’s business earlier this year because our previous accountant had been stealing money from her account. One of her employees occasionally takes out cash advances, and I have successfully been able to record the advances he’s been given since I took over, as well as record the deductions from his paycheque for the advance payback. I have had to start my own set of books for 2019 because a vast majority of the numbers they entered are deceptive (they were taking money off the top to pocket), inaccurate, and/or in the wrong account in the chart of accounts. Because of this, I have been going through her bank statements for accurate information so that her tax return will not be full of false information. Our last accountant used QuickBooks and had given me some of the payroll information they had on record for the first six months of this year, 2019. I am trying to record the repayment of cash advances they had taken out of this employee’s paycheque, but so far, I have been unable to do so, and have not been able to find any information other than taking a deduction from his cheques. I do not want to take deductions from his cheques that have already received. I have thought that maybe I should simply reconcile the Repayment Advance Payback account, but I haven’t done so because I don’t know if this is correct. How do I record the money this employee has already paid back in the Repayment Advance Payback account that I have set up (in addition to the Employee Cash Advances account)? Please help!