@Mellie1968 Yesterday I opened the courtesy light unit to my surprise it's missing in my astra K as well. I have bought one from ebay and hoping to get in next couple of days. Thanks for replying @Mellie1968
I have the same issue and I would like to hear on how you fixed it. I bought 2017 astra K recently and I have checked with both iOS and Android devices and it didn't work in neither of the devices.