You can use 20, 50 or 100 hours per month (30 days) with a Basic, Standard or Premium gift card. If you use up your hours before the 30 day period is over, you can only keep listening directly if you upgrade your gift card and pay for the remaining days of the period. If you already have a Premium gift card, you can buy extra hours instad of upgrading.
You can easily upgrade your gift card or buy extra hours on your account page. Just add a payment method if you haven't done that yet and then head to the "Gift card" section to upgrade. Extra hours can be bought under "Subscription".
If you don't want to upgrade for the remaining days or buy extra hours, you can wait until the period starts and listen and read again then. Under "Subscription" on the account page, you can see when the next period starts.
If you have a current subscription period when redeeming you gift card, the gift card period will only start once the current period is over.
Gift cards are only available for the following markets and have to be bought on the respective website: Austria, Belgium, Denmark, Finland, France, Germany, Italy, Netherlands, Norway, Poland, Spain, Sweden, Switzerland, United Kingdom
Gift cards are not transferable between markets.