How is the €30 discount applied to my bill?

So you can always make the most of the discount (and because we're legally unable to issue bills with a negative amount), the €30 isn't deducted all at once. It's spread out as follows:

• €10 discount per month.
• For 3 consecutive bills.

This way, your bills are reduced for three months in a row for every friend you bring in. The same applies to your referral — they'll also get a €10 discount for 3 months on their bills.