When I agreed to the terms-conditions then clicked "send" on my BTC transaction within 1 minute of 13.00 GMT, this was the condition for the 50% bonus:
Last block that will contain the first 10 million DCT. This means if the limit for 50% bonus will be reached in the second block for example, the whole first and second block will be counted even if the overall amount will be higher than 10 M
The additional diluton of my investment was not announced until 26 minutes after I had already agreed to the ico terms and sent my BTC in:
Everyone who will login in DECENT ICO will have 3 hours to get the 50% Bonus. Valid for next 10 hours!
https://ico.decent.ch/ From the terms-conditions legal document:
Then the funders will acquire DCT at predefined conditions over a period of fiftysix (56) days.
50% bonus could be cut off at 3000 BTC to stop this dilution which was not a condition during the first 25 minutes of the ico