Claims just being rejected without valid reasons

Hi, I am referring to 2 separate claims. The 1st claim, service date 20/7/2022 was for x-rays for my daughter. We activated the Booster Benefit by going for our wellness tests. Now I am being told that the x-rays done for her knees are not covered by Bonitas. How is this possible? It was simple x-rays. The other claim was for my husbands chronic tests, which were not processed as PMB and also rejected. I am paying Bonitas every month and the 2 times that I claim, this happens. Please contact me