No, you cannot swap maps during a subscription period.
For example, if you currently have British Isles in a single map subscription and you want France, you either need to upgrade to a higher subscription option, or wait until your subscription is due to renew, and then change the subscription map required.
For all Two, Three, Multi-Map or Bumper Multi-Map subscriptions options you do not need to select/specify all the maps you want at the start (when you purchase it). You can just specify which maps you know you want (at the start), and then contact us when you want one of the available (unused) map slots filled with another map.
Just like the single map subscription example above, you cannot swap maps during a subscription period in Two, Three, Multi or Bumper Multi map options.
If you want to upgrade to a new subscription option (shorter, longer or with more or less maps included, etc.), then that will replace your existing subscription. If you are part way through a subscription and want to upgrade to a higher level (more maps) then please contact us first, and we will come back to you with a special upgrade offer (which takes into account any existing subscription period, etc. that you have left).