Couldn't see any deal mentioning this coupon so hopefully not a dupe.
For the next 3 days, HeyYou is giving back $5 in credit for spending $10 on on their app.
Only valid for the emails the code was sent to so possible targeted.
Promotional period commences on 00:01 29/01/2020 to 23:59 31/01/2020 exclusive to the email address which has received this offer. Must redeem code LUNCH105. The offer is valid on any one purchase to the value of $10 or more made on the Hey You app. Maximum $15 voucher per person or capped at 3 redemptions. Vouchers earned will be distributed via email on Monday afternoon 03/02/20. The vouchers will expire by 17/02/20.