If you haven't already, please supply me with an info@ email address I can link to the IFT Canva Team. When exporting from Canva, please use the below settings. Printing provider is optional, but I have included a link to my preferred printer.
You may have to click 'scale to fit' on the printing website as each template is designed at A4 size for maximum compatibility.
Joe - firstname.lastname@example.org