We appreciate you taking time to try all the suggested steps provided by my colleagues, khuppva.
We use the Migrator Tool to move QuickBooks Desktop and company files. You might have called a different department that's why they're not familiar with the tool.
You can get the right phone support here: https://help.quickbooks.intuit.com/en_US/contact.
You can also access it in-product:
Please let me know if I can provide any other additional support.