If you live in the UK as you say you certainly should be able to get the C25K app on your phone, I am sure one of the administrators on this forum will be able to give you technical advice and explain the reason you can't get it and help you how to get the C25K app, to me it does seem strange that you can't get it living in the UK.
I understand your frustration Aladina14 . However, it's not clear to me why Al is suggesting that the admins on this forum can sort out the unavailability of the app for you. The admins are all volunteers, with varying degrees of IT knowledge, and none of them is in any way connected to the development or availability of the C25K app.
If the app unavailability problem persists, an alternative would be to use the podcasts. You can find all the information and download links for both app and podcasts in the How to run 25K FAQ: healthunlocked.com/couchto5...
EDIT: The greatest likelihood is that your mobile phone network has put on some new internet addresses and they're being misrecognised as being outwith the UK.
Are you using a VPN app? You may need to disconnect this in order to download the app. (I'd make sure you are downloading from a secure location at the time). Remember to switch back on once you've finished downloading! 😀
There are also the podcasts in downloadable, non-app form, which have the advantage of being more technically robust. I am not sure where they are hiding these days (but there might be some information in our pinned posts here - there certainly used to be links)
I had same problem but if you google "couch to 5k nhs mp3 download" you will see some pod sites where you can just stream the weeks as you are doing them without using an app.
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