This is a server side issue. Something we missed in the testing and forgot about.
Please contact a owner in game and link them this thread.
For the time being only rejoin/DC when you want to finish your base/take your printers out. We will only refund for this issue under certain circumstances. We would also like to add if this is abused in anyway in the future the refund will not be issued.
You will be refunded for 5 xmas printers, 1 summer printer 4 quads 2 triple boosters.