If your opt-in form is not appearing on your website we encourage you to check out the settings and be sure you don't have limits set that have been reached.
If you want the same person to see this opt in every time set your limit to 0 days and 1000 times
Also note that in “already converted” box you will want to select to "show a message" or "Show the form". Otherwise if you have already opted in yourself and try and view again, it will not show.
Using a Square Space Website?
When using Square Space you cannot utilize the function that allows the pop up to disappear if someone has already converted of if they've seen it "x" amounts of times. If you have set up those settings in simplero then the opt-in will not appear on your square space site at all, so verify they are not active.
Also when inserting the code into Square Space the correct block to use is called a "content block". This is where you will past your embed code.