For anyone outside the U.S where most likely people around you will have Android devices and not iPhones, you are better off ordering trackers that are compatible with Google Find My Device
They're cheaper and allows third parties, plus the network is stronger.
I wonder which network is stronger in the UK. There are many recent-ish Android phones with presumably the latest version of Google Play Services. But I don't know if anyone has tried to test, or even to estimate the number of devices.