How the hell do I turn my USD -back- into BTC on Bitfinex?!

[SagaLuke]

Hi There --

First post; relatively new trader... Anyway: I've got ~$488 USD on Bitfinex (currently in my 'exchange' wallet)... It was my first time using this particular exchange (I typically stick to Bittrex but wanted some Iota, which isn't on Bittrex) and anyway, I turned it from BTC into USD (I thought it was turning into USDT) before the Aug 1 madness. Thinking I'd tether it when the price was high and turn it back into (more) BTC when the price dropped (the thinking at the time).

I'd still like to turn it back into BTC (or buy IOTA with the USD directly) but cannot for the life of me figure out how. I don't want to withdraw it, I just want to exchange the USD I have on the exchange. Pretty straightforward, right? But here's the issue, even though the $488 shows up as my exchange balance, there's nowhere to input an order size (see screenshot on imgur - link below) or clearly pair my USD/BTC. And when I click on 'exchange buy' anyway, a popup comes up that says "invalid order size(amount=0)". 

http://imgur.com/a/E3hNV

Any ideas whatsoever are greatly appreciated - I'd just like to spend money with Bitfinex and would like them to not hold my money hostage. Several support ticket requests (and Tweets) have gone unanswered.

Thanks so much guys!

[TryNinja]

This may seems obvious, but are you filling the "Amount" textbox with the amount of BTC (or IOTA in this case) you want to buy?

Mine it seems to be working fine.

[SagaLuke]

This may seems obvious, but are you filling the "Amount" textbox with the amount of BTC (or IOTA in this case) you want to buy?

That's what I'm saying, there is no "amount" textbox! It's so weird but it just disappeared after I made the initial transfer from BTC-to-USD (you can see that it's missing in the screenshot in my og post)....

[TryNinja]

That's what I'm saying, there is no "amount" textbox! It's so weird but it just disappeared after I made the initial transfer from BTC-to-USD (you can see that it's missing in the screenshot in my og post)....

What? I can see the textbox on your screenshot.

Are you saying that the textbox above isn't there anymore? Did you took the screenshot before that happened or what?

[SagaLuke]

That's what I'm saying, there is no "amount" textbox! It's so weird but it just disappeared after I made the initial transfer from BTC-to-USD (you can see that it's missing in the screenshot in my og post)....

What? I can see the textbox on your screenshot.

Are you saying that the textbox above isn't there anymore? Did you took the screenshot before that happened or what?

https://i.imgur.com/XeYEMXM.png

oh for fuck's sake! hahaha I was trying to do it through the "exchange buy" button - thinking I was "buying" BTC with USD. Don't know why I never tried the 'sell' button. But that seems to have done the trick! Thank you so much!