Just want to more clearly
you have change the limit goal is 800 btc?
if the fund collected is 250 btc you will still continues this project, if not all will be refund?
I want to know about the refund
you will sent the money investor to btc address directly or you will sent email asking about btc address?
Can we make investment for exchange address?
Yes, the limit is 800 btc, instead of 500 btc. And if we dont reach 250 btc we will make a full refund. You can send from any btc address (you can use exchanges), if we made the refund we will need to verify the authenticity of the account to prevent someone from taking possession of it. It is best that all users activate the 2FA. If you send from an address that you cant verify (exchanger) or you dont activate the 2FA, we will need to take other steps to verify that he is the rightful owner of the account. Any of this ways will works too:
First way:
Only send Bitcoins from an address you can sign a private message from or at least where you are able to get the private key for that address! This is important since in case of REFUND you can't proof otherwise that you sent bitcoins when you, for example, sent the bitcoins directly from an Exchange. In that case better send them first to your wallet and then from there to the escrow address.
For information about what you need to sign a message you can check out this thread:
https://bitcointalksearch.org/topic/how-to-sign-a-message-990345Second way:
Another alternative to proof your ownership of a payment would be to send me the last 4 numbers of your user id as satoshies in your transaction.
Move your mouse over my username, see my profile id is 18640. You can see yours when you are in your profile and hover the mouse over the links on the left menu. Something like u=18640 in the links show your User-ID. The last 4 digits are 8640. When you add these 4 numbers as satoshies to your payment then it is pretty sure it's your payment too.
For example you want to send 2 bitcoins and your profile id would be 18640 then you send 2.00008640 Bitcoin.
Third way:
If you activate the 2FA we will ask you for a refund btc address.
We add this info to the ICO Terms. The first two ways are taken from the SebastianJu rules.
If you send from an address that you cant sign or not activate the 2FA, we will need to take other steps to verify that he is the rightful owner of the account.
Bye