As someone in a similar situation

We were aware from pretty much the beginning that our money went to charms. We knew this. The resolution we got only confirmed it but didn't explain /why/ it happened.

I even have a screenshot of my charms menu that shows the box unticked from the day it happened before we even knew for sure that the charms were the cause of our problem. I didn't post it before because it didn't get across my then current point of "I have way too many charms in my inventory" so I opted for a full inventory screenshot instead and after a week I forgot I had taken it.

Either way it doesn't explain how I can start with over 100 charms, spend 40 and somehow it thinks I don't have enough and buys more anyway. If I really ran out at any point shouldn't then at least one of my charm categories be at 0? Since it should only purchase the number of charms needed to complete the upgrade? I shouldn't have 20+ extra of every type if it was only purchasing them because I ran out. One of those should have used everything it had. Why would the system think "Oh this person needs 5 more to upgrade, better buy 30 incredibly expensive packs just in case" ?????