One of the reasons that the contribution due appears doubled can be that the pay to fund has not been done for the previous month's super.
Pay to Fund hasn't been ticked
If you haven't ticked Pay to Fund for the current month, you can check if the Superannuation was processed for the previous month.
Go to Payroll, Maintenance, Transactions, End of Period, Superannuation Processing.
Ensure that Pay to Fund is unticked.
Select the Process To date for the previous month.
Preview the Report.
If the Contribution Due column appears as 0.00 the Pay to Fund field was selected, and the Contributions for this Period have been cleared.
If there are values appearing, pay to fund for that month has not been done. Review the values and confirm that all amounts have been provided to the Clearing House. If they have been supplied, then:
Take backup.
In the Superannuation Processing screen, select the Process To date for the previous month, tick Pay to Fund, and click Preview. The previous month will then clear.
Next, change the Process To date to the month you are running the super process for, untick Pay to Fund, and click Preview to view the current month's values.
Pay to Fund has been ticked
If you have already ticked Pay to Fund for the current month, check if the Superannuation was processed for the previous month.
Go to Payroll, Enquiries, Employee Enquiries.
Enter an Employee that was paid in both months in From Employee, and tick Single Employee.
Select a date range that will pick up pays for both months and click View.
Arrange your grid so that you can see Description, Period End, and Super Processed Date. If you don't have these headings, right-click and select Customize Grid Columns. Drag the fields into column headings.
Filter your description so you can only see super. Review the Super Process Date field, if the same date appears for both months, then Pay to Fund was processed in the current month.
You will need to go back and finalise the previous month before performing Pay to Fund for the current month, as per the above steps.