SB 2906 introduces limitations on when financial institutions can terminate banking services, including bank accounts and lines of credit, for Texas residents and businesses. It requires financial institutions to provide customers with notice and a reason for termination, along with a minimum 30-day period to transfer accounts. However, exceptions apply if an account has a zero balance, is habitually delinquent, or if the institution suspects criminal activity. Customers can appeal terminations to the Texas Department of Banking, which has the authority to reverse wrongful terminations. The bill also provides legal remedies, including declaratory and injunctive relief, for customers who prove a financial institution violated these rules.