You could be a more preferred/premium investor playing with higher stakes than me. Someone else here mentioned a wire transfer too you didn’t do that right?
It depends on the "Cleared Equity" of your account. E-trade defines that below. E-trade customers that deal with mostly OTCs, and transfer larger amounts of money into the account, will end up waiting because the "Cleared Equity" value sometimes ends up being lower than the amount being transferred into the account.