I have been trying to login to my national lottery account, and their site has concluded that I am not within the United Kingdom, and therefore ineligible to login.
In fact I am in Leeds.
This is s new problem, as I have always used my phone to login to that account. My laptop can login ok, so I can only deduce that the issue is with giffgaff.
This would seem to be the same problem as identified recently by another user whose wales-based phone thought that it was in France.
The national lottery link that explains this issue: https://www.national-lottery.co.uk/v/geo/block.html#blind_1