I am wondering why my paypal info on my jot form is not showing up on t

Your assumption is correct, the single product usually does not show, as there is no need for people to decide if buy or not, or  how much the total will be. That's why it is hidden on single product forms.

However, here it is an alternative solution, but it's a bit complicated, so you must use advanced CSS:

1. Create a 2nd product with a $0/free amount.
2. Find the class, IDs, and Tags of the fields involved:

Here's the sample field that involves the 2nd product, below it is the HTML source code enclosed in a green border box.

3. From my form sample, I was able to identify that the ID of the input field is input_6_1003, and the product name and the amount is enclosed inside a label tag.  This way I decided to add this to my CSS injection:

input#input_6_1003 { display: none !important;}
input#input_6_1003 + label { display: none !important;}

4. Save your form.

To explain, "+ label" in my CSS means this will also hide the label tag. Since the span tag for the Free amount is inside the label tag, it will also be hidden.

Please let us know if further assistance is needed. Also you might want to share your form, as I checked your account and the form there doesn't show a form product yet