You can change your Webinaris tariff at any time in the 'Account' -> 'Plan' menu.
1. When upgrading to a higher tariff, the amount already paid for the lower tariff is automatically credited pro rata and the higher tariff is activated the next time you log into Webinaris.
2. If you downgrade to a lower tariff, the existing tariff will continue to run until the end of the current billing interval. This is followed by the first payment at the lower tariff and your account will be downgraded.
3. After the tariff change you have to log out. Each tariff change is only activated after logging in again. The changeover usually takes about 10 minutes.