Bought something this morning at JB. Asked to have receipt emailed, store rep asked for my phone number instead of email and the message contains a link lead to the page on screenshot.
You will get $15 coupon in your email upon link the in store receipt to your account.
One coupon per customer. Make sure you ask for receipt to be emailed by providing phone number. Not sure if there’s a minimum spend required.
Thanks to @victrix
If you no longer have the sms but you have a digital receipt in your email use the below link:
https://www.jbhifi.com.au/receipts/start?receipt=XXXXXXX
Where XXXXXXX is the 7 digit code in the name of the PDF receipt attached to the JB hifi digital receipt email.
Update: 04/06/2019
Thanks to @wombatz
They seem to have bumped this up to $15. Got mine today with an expiry of 31/08/19
Update: 08/06/2019
Thanks to @Donatello, seems JB changed it back to $10
you don't even need to make another account