I've read the support forum for any kind of similar instance, and the only one I can find is this one:
Basically, I've been using Gravity Forms on multiple sites now for some time and I have a good understanding of how to use them and set them up properly.
We have 3 forms over at http://www.hotelinmarbella.eu/ and none of them are recording submissions, nor are sending out confirmation e-mail addresses even though notifications have been configured. The only confirmation we get is on the thank you page where it seems as if the form has actually gone through successfully.
It's such a weird problem. I just simply cannot get it to work. Would you like to have my login details just to double-check anything?
P.S. We're running this domain off a Hostgator account on a shared host, where we also have many other accounts set up that are running Gravity Forms perfectly.