User Story
As a donor, I want to donate a custom amount montlhy for a project so that I'm charged on the correct date.
When I select the custom amount, if there is any donation level with the same value on it, the selection moves out from the Custom Amount button to the level button, but they may have different settings, such as donation frequency.
Expected Behavior
When I click to donate a custom amount, it should not be overridden by any level available, but it should be a custom amount donation with the settings defined by the donor.