Nultan Ltd offers an airtime-as-gift solution called NAAVS that allows clients to provide secured PINs that can be redeemed for airtime during sales promotions. Users redeem airtime by sending the PIN via SMS to a premium short code. Redemption is real-time and works across major GSM networks in Nigeria. Live reporting allows clients to monitor redemption performance. While most redemptions are real-time, some delays may occur due to network issues. Customer service assists the small percentage of users with invalid or delayed redemptions.