When using a variable product the Add to Cart button and Quantity field cease to be displayed after you select the desired variable (i.e. Size) I've altered the CSS to make sure it gets displayed but then I am given the "Please choose product options" message.
I have a selected price and all other required inputs for each variable yet it still doesn't work. I'm thinking it could have something to do with the quantity selector of that could possibly not be going through.
Here's an example page of a product to test it http://www.coreytegeler.com/bolivares/shop/marquez-button-down-cardigan-2/
Any help would be fantastic for I have been dealing with this for over a month and I just can't make any progress.