he's selling it batch by batch because you said you there was transaction limit, and thus, have no choice but to sell it batch by batch, unless u're willing to wait until you bank in all the money, then he COD with you with everything, but most of us won't be willing to do that,right? and for the part he's selling to other people, it's because you haven't respond to him for a long time. you said you will buy everything, but you have yet to confirm with him, so he has the right to sell it to everyone, imagine if he reserved everything for you, ended up you said you don't want, then what will happen?