Back in the 1970s, I lived for a while in Boston. I needed both Canadian and American accounts, for reasons. So I opened an account with the Boston branch of the Bank of Nova Scotia. Things worked ok for a while, and then I moved back to Canada. I withdrew the pittance I had in the account, and asked the bank staff to close the account. For the next two years or so, I got account statements, showing the glorious zero balance. I think it only stopped when I moved and didn't notify them of a forwarding address.