If you have connected the wrong Google My Business Listing you can correct this through the location settings.
Follow these steps:
1) Open the location
2) Go to 'Location details'
Under 'Business Details' is the Google My Business (GMB) Listing.
Click the 'x' in the top left-hand corner and this GMB Listing will disappear.
You can then type in and add a new one:
To save this scroll down and click the 'Update Location' button.
You will then be given the option to update all reports as well which we recommend, you will see changes once the reports have re-run.
Note: Changing your GMB listing as above will update Local Search Audit, Google My Business Audit, Local Search Ranking Report but not your Reputation Manager report, to find out how to update that click here.