Hi Liz_A and mistyben
It all depends on the serial number. The outright purchase in 2003 would have been well before the current 12 digit serial number. A registration number would have been provided (and from memory these did not have a file limit).
The registration number would have eventually been replaced by a 12 digit serial number. This serial number would retain its perpetual status. Hopefully this was the serial number ending in 6920.
If not and a new Professional Partner serial number was issued ending 6920, this serial number may not have the 'perpetual' status. This could explain the difference in responses by different MYOB sections.
Regards
Gavin