i just renewed my plan with Optus a month or so ago & got a Samsung Note8. Well I hate the phone & cant stand to keep using it. Can I take it back to Optus & swap it for an iphone? Or am I stuck with it now?
Not liking a phone is not grounds for a swap at all.
What you have their is now a second hand device.
Only way to "swap" is to pay out the handset cost of that service and sign up for the iPhone (if its an iPhone x be prepared to wait 2-4 weeks for stock)