With Three UK I used gathered evidence over the course of 4 months to wiggle myself out of a £46/month 28-month 5G contract (had to pay £200 remaining on my iPhone 16 Pro) when I demonstrated that my phone was basically useless whenever in the postcode are where I live, even if I always had 1 bar 5G signal.

Not even phone calls would go through, let alone calls on Whatsapp et al, or loading websites using something heavier than just text.

Have raised a _formal_ complaint (they must report it to Ofcom), and after that it was just a matter of ensuring I lost enough phone calls to demonstrate how many ended up in my answering machine.

The fact that Wifi calling is also super buggy and almost never work, played also a big role.

My problem is, all other mobile providers in my area are even worse, showing LTE or 4G. So I just need to wait for them to strengthen signal, or move!