Can MozLocal cause duplicate listings?

[MyOwnSEO]

I had already claimed many of our listings before subscribing to Moz Local, will Moz Local just update those claimed listings or does it use the CSV file to create a duplicate  listings?  Out of nowhere I had about 5 duplicates pop up and am not sure where they came from.  They are a beast to get rid of so hoping there is an easy explanation/fix!

[SamWeber]

Hi there,

Thanks for reaching out!

Once uploaded, validated, and purchased, we publish your listing data to all of our partners for processing—which takes anywhere from a couple of minutes eight weeks. The only time we won't push a listing through to one of our partners is if you have a paid account with them already.

Otherwise, we update any existing listing that you have with them. We won't create any duplicate listings, so you'll be safe there. If we do find a potential duplicate, we list them out and direct you on where you need to go to fix them. Outside of that, you're welcome to use you Check Listing feature ( http://moz.com/local/search ) to see what areas could be improved for listings outside of our partnership network.

Hope this helps and have a great day!