Disappointing Service

Discovery adjusted my premium based on my salary without giving me any prior notice or communication. I was told that they obtained my salary information when I made an enquiry about a bank loan. Additionally, when I joined the medical aid, I was not informed that my monthly premiums would be calculated according to my income. I contacted their customer service line, but they were unable to assist me. My premium has now increased by approximately R700, and this is even before the annual increase takes effect.