They do not have a place to type the amount. Then I would not have been trapped like this. They have 2 drop down. One from 1-9 another from 10 Ghs to 10 Ths. As far as I can remember, I selected 2 correctly, but instead of 10 Ghs, I selected 10 Ths before clicking on order button. Hence the current problem.
From 1/ponzi I rate them ponzi, good luck anyway. I might be wrong.