I appreciate you for adding your first post, @YJ4.
Yes. You can ask the local agent to transfer the subscription to your name by transferring the master admin rights. This way, you'll continue to manage the old QuickBooks Online (QBO) file. I understand that you want to combine the data between two files. At this time, we won't be able to merge multiple company files or IDs. You need to export and import your data manually to move your old files to your new account.
You can learn more about the process from these links:
We've also assembled answers to some of the frequently asked questions about importing data to QuickBooks, you can see the details here: Common questions about importing data to QuickBooks Online.
If you have additional questions while handling your QuickBooks data, let me know by adding a comment below. I'm always here to help. Keep safe!
