If you have received a voucher code for Candli, you can use it in Candli.
First, you must log in as a user with a free plan (available to all new users). Once logged in, you can use your voucher. To do this, click on your username in the left panel (1), then click on “Redeem a voucher” (2):
Then enter your code and click on “Redeem”. Note that voucher codes are in the format “XXXX-XXXX-XXXX”. Candli will be topped up with the premium version corresponding to your voucher.