澳大利亚采购需求：荧光笔、凝胶荧光笔、闪光马克笔、白板笔、颜料眼线笔

I've recently purchased a black pigment liner set and am really happy with the overall performance of the pens. However, I've encountered an issue with one of the pens, which seems to be empty and just won't write at all. It would be great to get this resolved. Would it be possible to receive a replacement for that particular pen? I appreciate your attention to this matter and look forward to your quick response. Thanks!