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I would say the only way you are going to see a checking? account closed is if you don't meet the monthly requirements to avoid the monthly fee and you don't put money in it and the fees bring the account to $0... I think they would close at that point.
If this is Chase Credit Card, not sure why they would close a credit card because of not being in the state if you use it.
We are constantly expanding and will be opening loads of branches in 2012 alone. Call Banking and ask them to check the list for you and speak to a SUp about rules for closing accounts.
Chase closed, then reopened, my Chase Amazon.com Visa after a payment was returned (sic...) .. I made a typo in entering my bank account info while trying to pay on my iphone. When I called, I told them it was merely a typo and they were able to reopen my account, after confirming that the account number was off by one digit.