Daylight ******ion

My name is Anthony I work for a woolworths. My wife was diagnosed with pancreatic cancer and she had major surgery last year. I am the main member of my discovery medical aid which is administered through psg. They have added my wife's salary to mine and thrown us into the highest bracket. What made discovery do this because now my medical aid is almost double of what it was. Are they trying to recoup losses for that incident that happened last year because this is just daylight *******. My medical aid jumped from 6500 to 9500 because they added my wife's salary into the mix I need the medical aid for my wife but it looks like medical aids don't care about there customers but they always trying to strive to being the best.