Expired Refund Card Replacement

Hi,

I received a refund card from Xfinity for an overpayment on my bill. The refund card has expired. I have been attempting to replace the card form months, but the xfinityrefunds.com webpage is always displaying a maintenance screen, and the phone number only tells me that the card is expired, and I have to request a new one through the website.  I am requesting a replacement card and that any monthly maintenance fees assessed on the expired card account be reversed before they issue the new card.