Got 10 sessions with psychologist, psychiatrist in 2022 not 15

I'm being sent from pillar to post for weeks now. I'm registered on your mental health program and I get 15 sessions for 2022 a year with either psychologist or psychiatrist. Last year, to my shock, for my last two visits to a psychiatrist I got by him as Fedhealth didn't pay for it. Upon querying this year I found out that for 2022 I only had 10 sessions and not 15. Your call centre puts me through to Medscheme, they give me an email address etc etc so it goes on. In need to get my 10 sessions for 2022 to be restored to 15 sessions and refunded the amount I had to pay the psychiatrist. I'm really peeved at the amount of calls I have to make and amount of emails I have to send. I also got told my psychiatrist must send a letter saying the amount of sessions I would need. I called her and got told she wouldn't know at the beginning of the year. What about my psychologist then? Must she also guess? Why can't I get a definitive answer out of you?