I am still receiving leads through my form after I closed my advert on Facebook

I have halted one of my current Jotform and closed my advert on FB, but I am still receiving leads...Why?

You probably had it enabled the time you receive the last submission in the form. I see that you have disabled the form. Are you still receiving submission after doing this? Once the form is disabled, no one should be able to submit it since the form is hidden or will display an error message.