Why does my voucher redemption not work?

Subscription & subscription management

For iOS users (iPhone, iPad):
Some vouchers can be redeemed even if you have an active subscription, while others are intended for new users only. Check for more details where you received the voucher.

For Android users (e.g. Samsung, Xiaomi, Motorola):
Vouchers cannot be redeemed if you already have an active subscription or had an active subscription in the past.