Troubles upgrading membership

Need to upgrade to the next membership. Card then gets declined and I get prompted to enter new card details. I do so, but when I try to press continue, the window just loads indefinitely. Tried this multiple times on different computers and browsers.

It seems our system is blocking a duplicate subscription.  If you would like, we can cancel and refund the storage subscription.  Once that is cancelled, you should be able to upgrade to the subscription of your choosing.

Yes please. Thank you.

I cancelled the subscription and refunded your payment.  You should see the refund posted to your card within the next 7-10 business days.  You should now be able to upgrade to your desired subscription.