Hi mindaugasma
You can try to disable the module title, then the upper line will disappear.
In case you still want to have the title, but remove the upper line, please use the custom css:
#t3-footer .footer-header {
border-bottom: none;
}
You can add all the content you want to the footer section and let us know, we can provide custom CSS so it can be similar to the image you sent.
Best regards.