Actually, you don’t have to get two separate subscriptions, since there is a workaround for this.
You can create two templates and customize one of them to show your alternate address, by replacing your organization’s address. Here is how you do this:
Now you can use this template for your transactions, by scrolling down on your editor screen, click on the edit option present beside the Template field, and choose the alternate template.
Please refer to the gif file present below for further clarity:
and GST filing.