In telco land final testing is now an end-user responsibility. If you're really dissatisfied with the performance of the phone take it back and demand another one. Costs 'em nothin, your provider would rather see you happy paying them your bills than risk you going elsewhere.
Unfortunately every mobile phone I've ever owned keeps playing the find me by triangulation game by constantly binding to every nearby base station in a round-robin way. Also noticed that it always splurges data every time I pull into my driveway. These are the perils I guess from having worked for a Swedish multinational and been unwilling caught up in 2 murders involving a bunch of of their retarded employees.