I assume its
1. cash deposit in bank... but only once the bank closes? Thus do you release bitcoin that night? Or when?
2. online wire. However, there could be possibility of fraud.
1. Depends on what country you are from. But in my country, we can send bank transfers anytime of the day. Its called IMPS .I am sure in todays world, most of the banks allow that as well.
2. Yes it can be from a fradulent source, but since the traders are reputed, you are not in the risk when buying. While selling, they sure have evidence from the receipts and all.
from the us... have us bank accounts. But located in mexico. Thoughts?