[Client] Free Champions Bundle

I recently purchased the 'Champions Bundle' through the in-client store. I already owned every champion in the bundle and was looking to get the Huntress Sivir skin. Owning the champions deducted the price of the bundle to 975 RP. Upon purchase, I realized that it did not charge me 975 RP. It seems to have been purchased freely, instead.

As it was a one-time purchase, I'm not in a position to reproduce this bug.

Edit: Upon relogging the RP was removed. It seems my RP amount just didn't update.