Hi. i accidentally bought bonds on this account but i wanted them for my main account. Can i sell the bonds on this account and manually transfer the money by logging in to both accounts at once?
Yes you can multi log and trade items between own accounts! But Bonds will be
untradeable
once traded to someone the first time so you can't sell it on GE until you pay a fee to make it tradeable! You can also read
this
article to transfer items purchased to wrong accounts!