Hi and_wise,
Thanks for taking the time to come back to us in the Community. We're sorry to hear this issue is affecting you.
As you've already mentioned in your post, we are aware of this and the teams are working on this however as the masts used abroad are not owned by us, it is something that is proving difficult and more complicated to resolve.
We understand how frustrating this is for you however regardless of whether you speak to an agent or manager, there is nothing anyone can do currently. We can only advise that we are aware of this and working on it.
Once we have any update, we will of course let you know.
Apologies once again.
Thanks,