I recently returned an iPhone that stopped working and Apple were willing to exchange it under warranty until they found out that it was brought in HongKong via Kogan. Kogan were happy to refund the entire value for the iPhone and asked for Notes from Apple. Despite 6 weeks since Kogan received the return package, they have not yet contacted me for the refund and stopped communicating altogether! There is no phone number on their website so all messages are sent via their help centre on their website. Tickets have gone unanswered even though I'm a Kogan First priority member!
26/03/2023: I contacted Kogan via Facebook and twitter and their Facebook team responded very very quickly. I have therefore changed the overall rating from 1 to 3. I also received a full refund after my case was examined by their senior staff.
Note to the community: Kogan has a potential ticketing bug where their replies to older tickets are not received by the customer. In my case a Kogan representative contacted me via phone and said he had replied to my emails which were missing from my inbox. He even sent emails to alternate email addresses which were not received. However, once he initiated a new ticket, we received their email.