Nonce field ain't working

Hi, A little while ago I made a small custom form.
however the nonce field that I added won’t work and I can’t find out why.

The nonce field looks like this one: wp_nonce_field(‘edit’, ‘wp-check’)

The form is getting checked by a file which I included and in that file I added the verify which looks like this: wp_verify_nonce($_POST[‘wp-check’], ‘edit’ );
this check I added to an if check. However I keep getting the message that the nonce isn’t verified. It looks like its not reaching the if check. Though when I echo something normal in the file I can see it on the page which means that the file has been included correctly.

Included file:

if(isset($_POST['name3'])){
  if(wp_verify_nonce($_POST['wp-check'], 'edit' )){
    echo '1';
  }else{
    echo '0';
  }
}

Form

<form method="post" id="acc-edit">
<input type="file" name="name">
<input type="file" name="name2">
<input type="file" name="name3">
wp_nonce_field('edit', 'wp-check');
</form>

It might be I am missing something small but I have no idea what and I am curious if anyone could help me with this.

thanx