After so many years without issues? Was she withdrawling a lot before?
A savings account isn't meant to be withdrawn a ton of times as part of the intent into it. Was she confused on what type of account she had and thought it was just like a checking account?
The reason I mentioned my account when I was 8 or 9 is because at that age I fully understood the limits to the account, the daily required minimum balance, the interest rate and the amount of times I could withdrawl from it. It's not that I expect every kid to know that, especially if their parents set up the account when they were way to young to even remember but if she's had the account for 10 years she was probably of an age to understand basics to the account and as you age that's going to be on you to know. If I didn't know about things I would say that's on me, my bad for not knowing.
When I think of things that trip people up it's usually things like overdraft fees increasing, service charges to accounts that didn't used to be there or increasing in the service charge, the financial institution converting your account to a different type that may have different terms and conditions, etc.
I've been with my bank for nearly 14 years. They've converted my account several times, I still have an old account that I don't want them to convert but it comes with service fees now, my credit card with them was converted to a rewards cash back card automatically. Now that stuff was sent to me in notices or my online account and that can more easily get buried. My husband and I have had the Money Market account for nearly 7 years now and I do remember when signing up for the account the stipulations on it though. If I didn't know though about what stipulations come with it I can go onto my Mobile Banking account and find out though. Does she use Mobile Banking or the like to go into her account to look at the rules regarding her accounts?.