It's so unethical. You work for a company for many years and when they are ready to let you, instead of doing it in a dignifying manner, they send you a text message. It's now known as e-sacking.
Access Bank and Ecobank acquired Intercontinental and Oceanic Bank respectively, and they've been been laying off staffers of the acquired banks, sometimes via e-sacking.
Here's one of such text messages sent by one of the acquiring banks mentioned above.
“Dear All, Following d current restructuring in (identity withheld) Bank, we regret 2 inform u dt ur service is no longer required. Pls note dt ur letter will be sent 2u soon.”