FNB Health cash plan, very poor service

On the 28th of April I was hospitalized, on the 5th of May I was discharged, I made my claim, they sent me 2 forms, 1 that I needed a doctor to fill in, I paid R800 for that form, on the 14th of May after calling FNB multiple times with a different story from their side, I submitted all documents including the form I paid R800 for, the next day I contacted them and asked if everything was in order, the call agaent said yes, 2 week later another agent phoned me and said that there is another form that needs to be completed by my regular doctor for my medical history, they will pay for that form, I gave that form to the doctor that monday, tuesday the doctor informed me that they sent the invoice to FNB, because FNB needs to pay before they release the form, I contacted FNB again, they said that the didnt receive it, I contacted the doctor again, so they sent it again, Then after 2 days I phoned FNB again and the call agent said that everything is in order and my claim is with the managers to be finalized to release the funds on my claim, 2 days later I contacted them again, and then they said that I still need to send them the forms, so I went to the doctor because FNB said that they already paid for the form and the doctor didnt sent it, so then the accountant at the doctor's office showed me that FNB didnt pay, I contacted FNB again and then they said that they never received the invoice from the doctor, please note that a few days before that they said they did receive it. So I contacted the doctor again and asked if they can email the invoice to me so that I can also send it to FNB, so they did and I forwarded it to FNB. Last week monday/tuesday someone from FNB contacted me and said that she is going to pay it now and because the doctor is also with FNB it will probably show instantly in their bank account. The next morning I contacted the doctor to ask if they reveived it and if I could also get a copy, they said they havent received any payment from FNB, I contacted FNB again and they said that the payment will be made before friday, this morning I contacted the doctor again and they still havent received it, its now 21 June and my FNB app now said that I have no active claims with FNB, I have to submit a claim. In the beginnimg every time I contacted FNB they said 3-5 days...its almost 2 months now. I never complain about services I receive but this bad service is really getting me upset.