Half your customer base probably can’t use it now
Since the recent upgrade a lot of customers who were using this app can no longer do so. It says it supports devices with IOS9 and above but it doesn’t. If you are sub iPhone 5s or 5th gen iPad forget it. You will find Coles don’t care about you and if you want to keep using the app you will need to take your Coles MasterCard and buy an expensive new phone or iPad. No excuses Coles you just don’t care about your customers do you.