THREE had said the coverage at my postcode was "the strongest" for calls and data. They also claimed the same for anyother postcode I asked about, and for a third claimed there was no 3G coverage, but the phone would drop to 2G.
After nine months the "signal that was about to improve" meant I could make calls standing at an upstairs window. Of the other two locations, one it would not work even anywhere near the house, and the other only in the garden. Funnily when ending the contract, they admitted to having a map that showed coverage in far greater detail!
THIS FORUM IS ABOUT HELPING PEOPLE.
Say your postcode, and I am sure if someone is local they will drive past it to see how the signal goes.