If you participated in the pre-contribution phase you can top up with any amount even below 5 ETH as long as it is done from the address you registered with during pre-contribution.
i dont have more word... in blog cant contribution below 5 eth,, now pre-sale can 1 eth... why you dont say... just from 1 eth.. maybe your ico can fast ended... but you do it..
great news ty. and time for 1 eth.. 6 hours so long.. 3 or 4 it better,, this crypto world not in 1 region you make other contribute loss time and stakeholder pay other ico because not more rules