Yes. Settings → Let files be sent with a message is on by default, and adds a file field to the request form and to your reply box. Up to three files per message, 5 MB each, as JPG, PNG, GIF, WEBP or PDF. Pictures show in the conversation rather than as a file name to click.
An SVG is refused on purpose: it is a document that can carry script, and a support desk is exactly where somebody would send one. So is anything whose contents do not match what it claims to be — a PHP file named .png, for instance.
Still stuck? Ask the developers who wrote it. We aim to reply within one business day.
