Regardless of whether it's a merger or a buyout, financial institution will send out mailings.Usually a good 60 days ahead of time, so people can reissue credit/debit cards as needed. Order new checks, redirect direct deposit if needed, so on and so forth...
Four types of communication, if not more..
1. Mass mailing from bank
2. The financial institutes website
3. Most banks ask for an email address, so they can email their customers
4. A local newspaer, or another form of media
so unless people live in a blessed cave....
