Yeah, with my student account, I didn't do anything after I finished university... then one day I got a letter from them saying that my account was being switched to a graduate account... and then a year or two after that I got another letter telling me it was being changed to a regular current account - so I still technically have the same account I opened as a student back when I was 18 (the account numbers are the same and my PIN numbers are the same), but it's just been upgraded and adjusted by the bank over the years.