Shockingly bad card service and unfair benefit changes

I have had an awful past 3 months with Discovery Card. They phoned me and offered me a platinum card, which I accepted. At first none of my transactions were reflecting online anymore. This took a month to resolve. Then I noticed at the end of that month that my miles are no longer reflecting either. A painstaking two more months and 50 calls later, some miles finally reflected. To my shock and horror, the miles were not all reflecting(not even half of what should be). I had to call again and the call center then confirmed that not all the transactions were allocated miles and that it will be escalated AGAIN. I have lost hope now. It does not seem that I will get any satisfaction out of the card upgrade, and these very same people want to open a bank!! God forbid that I ever open another account again with them. On top of this, they unilaterally take existing benefits away. Like now where your discount when swiping for holidays have become dependent on how much you claim medically, REGARDLESS OF WHETHER THEY PAID FOR THE CLAIM OR NOT!!! If you spend even R5000 for the year on medicine or doctors, you loose most of the discount. How can a human being in 2017 be expected to keep medical expenditure for the family to under R1000? They may as well remove the benefit completely and stop trying to mislead people. It is impossible these days to stay under R10K for a family for a year! Shame on you Discovery, you seem to be disintegrating just like SOE's, and making money out of people is now the sole aim it seems...