Santander are a nightmare. I spent 18 months trying to get them to change my address and update my isa account. I made an official complaint and was sent an apology, but it went to my old address! So I decided to switch banks. I told Nationwide all about my problems and they have been amazingly helpful, ringing Santander and supporting me as I try to get the money across. Every time we try Santander come up with another reason why I can't have my money. The latest one is they have made my account dormant because I've not been using it! I rang once and Nationwide rang twice because we could not believe it! I've given up and I've asked the ombudsmen for help. It's been nearly 2 years of constant phone calls and letters and I'm further away than ever at getting it sorted.