Medical aid making it impossible to claim for something.

So being a Diabetic gives you the benefit of claiming for a Blood Glucose machine every year. It's been 10 years since I claimed my previous one. I contact Discovery to find out how to claim. They give me a Nappi code to use when I claim. I go to the pharmacy on a weekend as I work during the week. The Nappi code does not work and gets rejected. I phone Discovery the following week. Oh they have an issue on their side. I either haveto pay for the machine and send the proof of purchase or I haveto tell the pharmacy to keep the claim open. I go to the pharmacy the following day (In my lunch hour) and phone Discovery from there. I get told this will be resolved within 4 hours, the pharmacy should just leave it open (Against their policy). It it Friday afternoon and obviously nothing happens. and I leave empty handed once again. The following week I phone Discovery again. And the Pharmacy closed the open claim as they cannot use that PC if it's kept open. I told them I would go buy it, they say send the proof of payment to claims. I do that and it gets rejected. Discovery said they tried phoning me. (The number they give me is not even my number) I haveto send them the invoice as the slip won't work. Nobody said anything about that to me. Eventually I go back to the pharmacy for the fourth time. And I eventually get the invoice. Somebody phones me from Discovery just to say someone will phone me. Nobody phones me again. I mean if you have a fault on your system. Why don't you make things just a little easier to claim. And not send a high risk person back and forth 5 times and still nothing is resolved. I have sent emails to claim about every 3-4 days, with absolutely no response except the reference number. I got 1 email just saying how to claim. Not what I'm doing wrong. I am utterly disgusted with the "It's not my job" attitude of this entire company. Here is a list of my ref numbers: ***, ***, ***, ***, ***, ***, ***, ***, ***, ***, ***, ***, ***, ***, ***, ***, ***, ***