This post may belong on the noob thread, but...
If you order from a DNM that creates a unique wallet for each transaction, like Wall St. and (the old) Hansa, as opposed to one that has its own separate wallet, like (the old) AB, what happens if you inadvertently send too much to the transaction and it processes?
Obviously if you don't send enough the transaction simply won't process, but if you send a few too many dollars what happens? Does the DNM hold on to it? Do you have to ask the administrators for it? Does it go bye-bye and you simply need to do the exact math to determine how much to send? This could be difficult given the fairly complex fee structure most wallets charge for receiving, buying, or sending cryptocurrency.
Any advice appreciated.
Please note that WallStreet Market is not listed because of very serious issues. You should avoid it at all costs.
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