Well normally I make a user stay in the campaign and be stuck with the number of followers he started with the whole campaign. Being as you went from 900 to over 2500 in less than a week, you likely bought your followers and we dont want you either way.
I'd like to present a counter argument to this, not trying to contradict you yahoo, just explaining what I know.
On twitter you are capped at around 1000 follows per day, which means you would not be allowed to follow more than 1000 new accounts each day. Also, if you follow genuine accounts that are following other crypto enthusiasts / developers / traders etc you can easily get 1500+ followers in a week. Did this on my personal (and only) account @legendster and went from 350's to 1500's in a matter of 3 - 4 days.
So, just because the follower count increased over double in a week, does not necessarily mean those followers are bought or bots.