My kids can't be without medical aid and they can't be on a waiting period

I have swith my kids from Discovery to GEMS. I have canceled Discovery 31/12/2024. I have indicated to gems they must be put on from the 1st Jan 2025. Gems have approved them from the 1 Feb 2025 with 3 month waiting period. I was also told it doesn't matter when in the month I apply for the medical aid dor my kids they will bw active from the date I indicated. Now they want me to follow another procedure. My kids can't go without medical aid. They get sick any day of the month.