Unfortunately at this point in time, Hubdoc does not support the ability to delete manual vendors.
A temporary workaround is by editing the document location for the duplicate vendors into a new, properly named folder.
1) Locate the folder with the vendor name that is correct.
2) Drag all files from the other duplicate vendors folders into the this folder.
3) Delete the other folders using the blue drop-down arrow next to the folder name.
4) Change the other manual vendor's document location.
5) Select the properly labeled folder as the new location.
6) Click 'Save' to save the new configuration.
Future documents fetched or uploaded with incorrect vendor names will be sent to the new document location.
Capitalization does not effect vendor name however special characters and spaces do.