These must be the same place:
I think that your actual font files (e.g., 2E9A99_0_0.eot) must be in wp-content/uploads/fonts/webfonts and NOT /cantonibasic-bold – at least that is what the MyFontsWebfontsKit.css seems to have.
@font-face {font-family: ‘CantoniBasic-Bold’;src: url(‘webfonts/2E9A99_0_0.eot’);src: url(‘webfonts/2E9A99_0_0.eot?#iefix’) format(’embedded-opentype’),url(‘webfonts/2E9A99_0_0.woff2’) format(‘woff2’),url(‘webfonts/2E9A99_0_0.woff’) format(‘woff’),url(‘webfonts/2E9A99_0_0.ttf’) format(‘truetype’);}
The src: url(‘webfonts/2E9A99_0_0.eot’); says the font file will be in the subdirectory of /fonts /webfonts.