If these don't fix your problem, it's possible there's a bug in our website. The most effective way to solve this is by you opening the console and taking a screenshot. If you send this to us, we can find the root of the issue, get to work on fixing it, and keep you updated with the progress.
Occasionally ad-blocker extensions or anti-virus software can cause issues with how our page is displayed. If you have issues particularly around the card payment page then turn off your ad-blocker and try making the transfer again.