Claim Not Paid

I had cataract surgery on both my eyes,paid for by Discovery.I was given scripts for two bottles of eye drops for each eye which I paid for.I was advised that if I completed an Out of Hospital PMB form and paid the doctor R560 to sign it that Discovery would pay the eye drops and the consultation fee (I only have a Hospital Plan)I confirmed this with Discovery who subsequently paid the consultation fee and authorised one bottle of eye drops which to date I have not been reimbursed for despite many emails and calls.This begs the question:If they are willing to pay for one bottle of drops, what am I supposed to use on the other eye?Also, why not all the drops as I was promised when confirming the PMB Form? I have on many occasions called and emailed to be told that this matter would be resolved within 3-5 days but to date NOTHING has happened!!