I think testers would be much more willing to test the feature if there was an option to choose how many chests and keys you can purchase at once, similar to how runes are purchased, instead of repeatedly clicking the same buttons over and over again.
Post feedback on new game features, improvements, champions, Items, map balance, new skins, gameplay experiments, etc here.
All bug reports live in the [Bugs board](http://community.pbe.leagueoflegends.com/c/bugs).
If you experience a bug or a feature not functioning as intended, please post in the Bugs forum. This board is for feedback and opinions on new features.