Day light *******

I don't know where to start but gems is so cruel, I was paying R7300 last year, now I m paying R9200 .I m so confused I called contribution department to get clarity because m aware about the adjustment that will be done on the 1st of February. The lady told me it will not change that 9200 .I want someone who will explain to why so much increament I m an educator m not earning a lot now my debits will be affected because of this drastic increase. How did they reach 9200 from 7300