We need an explanation!

In the last 36 hours I have received four SMSs giving me pin codes to access my account but I had not tried to access my account. Today I received a mail saying that I had successfully just logged in to my account - false! I did no such thing. On calling the Call Centre I was told that they’re having problems. No apology, no mail from them to clients who are affected telling them they haven’t been hacked and that it’s their technical problem. This is the most appalling situation. Stanlib, please explain. Apparently many of their clients have experienced the same thing.