Most likely they have closed the account - unless it was a non-fee paying account of some kind your money will have been used up paying fees and you may even owe them money for administration charges. This happened to my sister with her student account which was switched automatically to a normal account a couple of months after the date they knew she was due to leave college (you have to give this when you open a student account normally). She went abroad after graduating and a few months later statements and requests for payment of overdrawn amount were being sent to her - she had left a small amount of money there but it was used up by fee charges and then she had an unauthorised overdraft amount. She did argue this with the bank and they agree to waive the charges in the end and the account was just closed.