1- What platform are you referring to? I hope it is bitcointalk forum and not another platform.
2- You have specify (make it clear) more details in your offer, including the payment methods that you accept and the maximum amount that you can sell in each agreement in accordance with each payment method.
3- You are not posting in the appropriate board. There is another whole section dedicated to currency exchange, it's called "Currency Exchange"
You can move the topic to that board using the "Move" command that appears (for you as OP) at the bottom left of this page. You can also leave it as it is and the moderators will move it.