It would be good to provide a signed message in your cold wallet once the investor provides you with the funds for your site, it is one way to ensure you have sufficient bankroll to process withdrawals if a whale wagers huge amount of money and win while playing on your site.
Yes i will provide that
When? Yesterday you said "today or tomorrow", but so you have not provided it so far. Ok there is still some more hours before we go to 11th, lets see whether you can provide before this day end or we should wait it for few days more.