Horizontal divider issues!

Your themes CSS is showing that you header has the following css:

#header {
  padding: 1.618em 0 0;
  margin-bottom: 3.631em;
  border-bottom: 4px double #e8e8e8;
  clear: both;
  position: relative;
}

You’ll need to overwrite the border-bottom rule to remove it using a child theme/custom css plugin.

Please don’t create multiple threads on the same issue

cant seem to find that anywhere in the css, i am using a child theme but im not really sure what to do with it to be honest!

Put the following in your child theme’s css and it should override the current style:

#header {
  border-bottom:0;
}

Fantastic thanks!
Next question haha, any idea how i might move the primary menu up level with the bottom of the logo?