Just a thought. When we left, we told our bank we were going overseas for 2 years, but would be returning. We did travellers cheques through them.
We have just been through a lengthy process of trying to get our bank account in SA reactivated. Apparently, according to the 5th person whom I had spoken to , my account was deactivated as I had not touched it in 3 months. I have had to send a letter to them, asking them to reactivate it. What is so annoying, is that the lady told me that my bank was meant to get me to sign a letter stating that we would be overseas, and we wanted our account to remain open. Even more annoying, is that during my phonecalls from one person to the next, it took this lady to let me know that my account had been deactivated. No one else told me that and I was tearing my hair out.
So make sure to tell them that. It is none of their business if you are planning to immigrate or not. Just say you are going overseas.