Do not bother, I see that they are not answering the questions here. It seems that their community engagement is really bad and they obviously do not have community manager, or the one they had is terribly bad at doing his/her job That is probably also the reason why more people did not hear about them up to date and part of the reason why their token is only traded at Idex exchange. And even there it is actually not traded...it has trading volume equal to spectacular zero
Which is really the shame, because Crowdholding looks like promising platform and would be a great tool in more capable hands