Hiya @Nancy4321 and welcome to our community!
Unless the form submissions got marked as spam (you’d see them here: https://app.netlify.com/sites/ai-business-coaches/forms/5f3a5c7843ccd40007b8797c?filter=spam), we don’t have them. We don’t hide any submissions from you (except ones we detected as spam) - if they aren’t shown, we didn’t in fact get them.
Have you read this article on debugging form submissions? It’s the best resource for debugging why that might happen:
I took a quick look at your form and don’t know that you need the enctype - I think it should be what is specified in that article since you have no files being uploaded - and I’m also not sure what this is:
id='netlify-form' - if it’s for your code, that’s fine, but we need data-netlify=true or netlify in the form definition instead or in addition 
If that doesn’t help, let me know the answers to the other questions in the post