If you have opened a Trial account, you have 14 days to use it free of charge. After the initial 14 days, you have another 14 days to access your account however, you cannot upload any new photos.
During the trial, you have access to all the features included in the Premium subscription.
When you upgrade from the Trial account, you will be able to keep your user name, account settings, as well as the photographs uploaded during the trial.
If you do not upgrade within 28 days after your trial begins, your account and all your photos will be deleted.