Constant system errors and false information for paying a claim

I submitted a claim on 07 November for medical procedures I had done. Discovery rejected the claim with code 6 saying they don't cover it (hearing test, lung function test, ekg and general health checkup) - total value of claim is R2250 and I have many thousands of rands remaining in my MSA. I then submitted a "SPECIAL PAYMENT FROM MSA" form on 25 November. This money is still not paid and I am being shoved from pillar to post with different excuses every day as to why they have not yet paid this. If it is not that it has to go to a team leader then I get told there is a new system error and another team needs to assist. I am so dissatisfied with the way discovery handles customers when its time to pay and their lack of respect to keep to their promises when they say "it will be paid in 2 days" I have supported Discovery for over 10 years - at their hugely inflated prices - but I think its time to find a better service now!