Discovery Health is a money making skeem

I have been a discovery member for the past 6 years approximately. I am on their \key-care"and use to pay a monthly premium of around R500 since I was a student. Every year they require me to furnish them with my income statements so that if I did have an income. At the end of 2014 I furnished them with my income statement and when they saw that I had an income they increased my premiums to R1993 per month. Is this not ridiculous! I had to pay R1993 for the whole of 2015. I have been unemployed for the past 6 months"