Ok. So the 70% of the tokens are onhold in my wallet?? And i have the full control over it?
Why would the investors trust me? Is this safe to the investors? Am I missing something here??
The tokens should not be in your wallet. Someone pays you BTC or ETH - you send them the tokens.
Having said that, there are many shitty ways to run an ICO, and even if you issue the tokens properly there are still many shitty ways to screw your investors. You're literally taking an advance payment for something you may or may not deliver, and if you don't the token will be worthless anyway so the issue of who holds it when is moot.