Suddenly dropping down uCount tier without warning

I am very dissapointed with Standard bank Ucount. My tier level on Ucount dropped without warning, when i have been on the same tier for years now and have not changed any of my facilities I use. They suddenly drop you down a uCount tier without any warning. Complicated rules that keep changing. I wondered why am I getting a lot less than usual? The answer is falling down a tier without any warning or opportunity to fix or prevent it. This is not what i expected from Standard bank after being a customer for many years. and not changing my profile whatsoever.