If you want a bank where no one returns your phone calls or helps in any way, Sackville Bank in the Caymans is the best place to go! Of course that is said tongue in cheek, but in all seriousness their responsiveness and attentiveness is terrible. If you want a bank where the employees return your phone calls and help, stay away from Sackville.
I hired this agency to seek advice and help me form my own offshore company. They were very patient with my queries and professional throughout the whole process.