I have been struggling with bad dreams for many weeks, causing me to sleep badly. Nothing seems to help and it is affecting my work. On advice of my mother, I eventually visited our family sangoma, a traditional healer, who informed me that I am experiencing callings from my ancestors and that I will have to be booked off work for three weeks to undergo specific training to help the dreams stop. I am very anxious to address this issue, but my employer is refusing to accept the sick note of the sangoma. Can the employer refuse this?