NEED QUICK HELP - How do I deactivate a form submission?

Hallo there

I have a problem with one of my form submissions on my website.

The customer told me to deactivate the form submission so I just set the whole form to display:none

I did this 8 hours ago but we still get new mails with new submissions. I checked the site on different browsers and on desktop and mobile (chrome, edge, firefox, safari) and the form seems to be hidden on all browsers but we still get many submissions.

I also checked if the submissions came from the other form I have on the website but in the project-settings I can see that the submissions come from the form that I set to display:none.

Is there something I’m doing wrong or how can this happen?

I really appreciate any help!

Regards
Martin

Here’s my Read-Only link:
https://preview.webflow.com/preview/basel-schafft-zamme?utm_medium=preview_link&utm_source=designer&utm_content=basel-schafft-zamme&preview=22e5de445e0a5589d1cf054f0f59375a&mode=preview

Here’s the live website:
https://www.baselzaemme.ch/antrag

EDIT:
I deleted the form now to avoid more submissions. I will look into the problem tomorrow (EU-time) and if I find a solution, I will post it here.

I am still very happy if someone has a clue how this can happen.

Thank you