You can switch between the BUX account types at any time:
Firstly, make sure you download our latest app version. To switch tiers go to the settings in the app and select 'My account type', you can then tap on the icon in the top right. Then just follow the on screen instructions.
Upgrades: Moving from a lower tier to a higher tier will take effect immediately.
Downgrades: If you switch from a higher tier to a lower tier, the downgrade will take effect at the end of your current billing cycle.