BONITAS - NO PAYMENT NO ANSWER

In March I paid two healthcare providers as per their accounts and sent proof of payments to BONITAS MEDICAL FUND, to reimburse me from my savings. They processed the payment from my savings, and sent a sms informing me they are paying the service provider, but, neither of the service providers have a contract with BONITAS MEDICAL FUND to get paid. I have sent email, tired to contact the fund, but, the response is case is closed as the claim has been processed. Nobody comes back to the member, when a query is logged, the money has been deducted from my savings, but, no payments have been made.