Changing goal posts with Discovery

I have used my Discovery Healthy Gear benefit many times over the past few years and was very pleased when I was able to increase my percentage benefit even more with Discovery bank. I was extremely annoyed when the timing of the monthly spend was changed without any specific clear communication. Ie, it used to be based on your calendar month spend. (1st to 31st) I was caught out in January 2020 when I had already maxed my R2,000 healthy gear spend on 21 December 2019 and I bought again on Saturday 4 January 2020 thinking it would fall into a new month and I would have access to a new R2,000 spend limit. But no, these 2 purchases were lumped together as I was informed that my cut off was now “about the 10th” of the month. And I effectively got no cashback for the purchase made in January. Fast forward to Saturday 3 October 2020 and I went to Sportsman’s Warehouse to use my 11 Sep – 10 Oct month’s R2,000 Healthy gear purchasing allowance. I note now that Discovery have been super-efficient this month and decided to cut off early as I received my Healthy care and healthy food Discovery miles on the 6th of October but no, payment for healthy gear! I assume this is because I have had my purchase on the 3rd rolled into the next month. Yet you *****ed me over by including the previous purchase on the 4th of the month into the previous month! Please can you allocate this to September, recalculate this and pay me my healthy gear. And could you please advise exactly what date my Healthy-care “month” starts and ends as this guesswork and randomness is infuriating! It cannot be whenever you get to it sometime within the first 10 days of the month!