Multiple outlets report that some savers who leave funds in older or long-held bank accounts may be earning less interest than is available elsewhere. The coverage says bank interest rates have been falling and that customers may not notice the impact if they remain in accounts opened earlier at higher rates. The articles argue that this can reduce returns substantially over time, potentially amounting to hundreds of pounds per year depending on the balance and the gap between a customer’s current rate and newer offers. The reports encourage savers to compare rates and consider moving their money to higher-paying accounts. While the outlets emphasize the potential losses from not switching, they do not provide specific bank-by-bank comparisons in the supplied text. The core message is that interest rates change and that checking whether an existing account remains competitive can help customers avoid lower earnings.