Claims Not Paid

I recently went to Dischem to do a Vitality health check, I was forced to pay for this by cash as Bankmed did not provide the necessary codes to Dischem, I was told to claim manually, this claim was rejected as the codes on the invoice are not correct as Bankmed has not provide the supplier with the correct codes, I call Bankmed and I'm told I should go to Dischem, I go to Dischem and I'm told to call Bankmed, I'm not sure what to do, it feels like Bankmed did not consider all scenario's when they moved to Discovery, I am also disappointed that i now have to pay for my mums medication as they no longer cover the entire cost, was this move actually better for your members, I really don't think so, was everything explain and changes communicated effectively, not at all, what a mess up, from having awesome cover with Momentum members are now short changed....