Hi Fran_29
Personally I would get one (or more) of your employees to check their Income Statement through MyGov.
'Accepted' by the ATO does NOT mean the data is correct, it simply means your ABN was found, all TFN's were found on their systems and all numbers were in fact valid numbers, that is, there were no invalid characters in number fields.
MYOB Payroll Reporting Centre is poorly designed, data is sometimes missing even though it has been reported, or hard to find, and hard to check against your Payroll Reports. Sometimes the data has not been reported.
Only way to definitively check accuracy is to view the Income Statements. These are not available on ATO portals for the employer, only for individual employees.
Regards
Gavin