Problem with coupon and check-in/out calendar

okeanidesvillas.com/
The check in/out dates are from 1/1/2016 to 31/12/2016. If you want to ckeck the Coupon code, is WedDisc2016

I still can't see it. I tried it with crome and firefox but nothing.

Hello, my problem is that the coupon is not showing anywhere. I know that the coupon code works but how will people find it? For example, in the demo of villa bellucci template coupon is showing like this (check the attachment)