Navigon: 58.8MB left to download

Hi all, When I am in the map manager tab and flick to the maps that have been downloaded, I reach a section where I am shown the space taken by the current maps. There are also 58.8MBV of files left to download. There is a start download button which I can hit to initiate the download. I did this a few times. The first two times, I was told that the navigon server could not be contacted. My iPhone was connected to my wireless router. I then tried again and got no error message but no download took place. I have asked support and they suggest I uninstall and install the application. Does anyone have any other suggestions before I do this? My iPhone 5 is running IOS version 6.2 if I am not mistaken. Pranav