Order Packaging for equipment return broken on website

Hi 

I’ve requested pre paid returns packaging for my hub as I’ve left virgin. But it never arrived. I’m receiving emails threatening £40 fines. I’ve tried a number of times to order packaging on your website but the button to enter details appears to be broken. Nothing happens when you click on it. I’ve tried on different browsers and settings but still no good. Please could you fix so I can return the hub and stop receiving threatening emails? Or just tell me how I can get some packaging sent to me  

The webpage is: https://www.virginmedia.com/help/request-prepaid-pack

thanks