Claim not fully paid

Iam so disappointed with Bonitas, there was a claim that was made in May the second by the provider for blood test. The claim was R891.50, under claim it shows that is being paid, but when the statement come around June Bonitas only paid 292, what happened to the rest of the money. When I call customer service I’ve been taken from pillar to post. No one is assisting me and explaining what’s happening. I am now left to pay outstanding balance to service provider while I pay medical aid every month. I regret joining Bonitas I will have to change it