Hi, new to BackerKit as a crowd funding platform. What options are available after this campaign ends? Specifically, 1. If I pledge for $1, can I upgrade to a $30 or case pledge after the campaign is over? Similarly, if I pledge for 1 $30 copy, can I upgrade to a case pledge? 2. Are late pledges an option, and if so, will the prices be the same? I'm trying to organise a group purchase, but running out of time during the campaign, so I'd like to leave my options open for as long as possible (and also to have time to communicate with the other potential group members). Thanks