Only one location displaying on map for two location town

Hello,

We have a few instances where there are more than one location in a town to buy our product. When hovering over the map there are two pins but can only pick up one of the locations, even when zooming in real close…

They are both on the listing below the map but I would prefer for both to show up on the map.

Any assistance on this would be appreciated.

http://www.kricklewoodfarm.com/farm-goods/find-a-store/

http://wordpress.org/extend/plugins/store-locator-le/