Yes – buying online is treated the same as any other sale. You’ll still be protected by the Fair Trading Act and the Consumers Guarantees Act.
This includes sales from Facebook Marketplace and other social media, auction sites like Trade Me, websites and text messaging (if the person or business selling the good is a “trader”). They must disclose their trader status online.
If you buy from a New Zealand business and the goods are faulty, you are able to get refunds, repairs or replacements under the Consumer Guarantees Act.
If you purchased the goods using a debit or credit card online and your goods don’t arrive, you can ask your bank to reverse the payment (“chargeback”).