As Tania reviews the checks for deposit, she realizes that one of the checks collected for a patient’s co-payment is postdated two days in advance. The office has a clear policy regarding not accepting postdated checks. The deposit slip, which today lists 18 checks, already includes the postdated check. What should Tania do? While reviewing the petty cash drawer, Tania realizes that $5 is missing and unaccounted for. How should Tania handle this situation?