$30 credit on your Spark account when you purchase a Call Screen phone.
Call Screen is New Zealand’s first home phone with nuisance call blocking technology that can effectively help users protect themselves from scam calls. Call Screen looks and plugs in just like any other home phone, but it is able to block scammers who often use a certain type of software to carry out scamming activity. For more information about Call Screen, visit spark.co.nz/callscreen or a Spark store. New and existing Spark customers with SuperGold cards can get a $30 account credit upon purchasing the Call Screen Twin Cordless Phone by presenting their card and photo ID in a Spark store.
If Spark can block scam calls then why don't they just do that for everyone, seems like an opportunistic approach targeting older, less technology savvy people. Exactly what the scam callers do.