Thanks for letting us know about your concern here, @springbuz-com.
I can see here how it is necessary to merge two QuickBooks account. However, the ability to merge two company data files into one is currently unavailable.
In the meantime, you may consider exporting a list from one QuickBooks Online company and import it into another. Locate the list you need to export, and then select the Excel button. Lastly, save it to your computer, then import it into another company.
I've also added these links to help you with the process of moving data from one company to another: