You should select the Pro version. Licences are issued based on the number of locations you have so if you are registering as an umbrella organisation with different business/locations/brands you need our Pro version. Here are some examples:
1 Business with 1 physical premises/location: VoucherCart Standard
Group/Chain of businesses (eg. Hotel Group with 7 hotels: VoucherCart Pro (5 locations) + 2 additional Location licenses added.
Restaurant Chain with 40 Restaurants: VoucherCart Enterprise