As a little bit of a background on my prescription insurance: I either pay 10% or $25 for a drug; whichever is more. When I went to pickup the Malarone Walgreens did not have enough in stock so I go about a weeks worth. This cost $25. I then went back after a couple of days when they got the rest of the Malarone. Unfortunately, this was again another co-pay of about $28 (apparently the 10% was a little more). What should have happened, if I had gotten it all together, would have been a co-pay of around $32. I tried explaining this to the clerk at Walgreens, and that I should get a credit for what I already paid. Of course this concept was way beyond her mental scope, and after she went and talked to the pharmacist (or tech) we got a lecture about how our insurance worked (shockingly she was wrong). Ultimately, we had to concede defeat because I was on the verge of an aneurysm. I know co-pays and higher math like addition and percentages can be complicated (what did we do before computers, and in hindsight couldn’t her job be replaced by a robot or fancy ATM); but maybe I should blame the public school system.