This may not necessarily be a Vodafone issue @Kaitlyn , it would be worth contacting your bank just to make sure there is not a restriction on the card. Try topping up online using an alternative card or alternative top up method here: Top Up If you are unable to top up through your online account or Application try clearing your cookies to start and try again.
For Vodafone account access, you can speak to the Social Team here: Contact Us or speak to Vodafone using live chat.
