I was just wondering say if you donate 25 one month and get to the first bronze tier, if you donate 25 the next month so your total of donations is 50 would you progress to the next tier and next as you donate more, or are you stuck at the tier you first donate as? I was wondering because while I may not be able to donate a lot at once, I can add more to it per month.

Donations are cumulative, you rise in tier level as you donate more.

Thanks a lot for answering me.