"WE have decided to reward you $30,000" should be "Because the market has decided that hacking top tier instagram accounts is worth a low seven figures, here is your $1,000,000 payout to save you the time, effort and liability of monetizing this yourself"
I don't see any evidence that the market has given a 5-figure value, let alone a 7 figure value, to temporary access to an Instagram account.
Also it wouldn't be temporary access lol. When you take over an instagram account you change the email address and the username twice, the person you took it from gets the alert email for the first change, the second email gets the alert for the second change to the third email address. The original owner doesn't know what/where the account is anymore.