I can't upgrade my account to freetrade Plus

I added the card details but then it won’t let me add the card. Anybody else having the same issue?

This isn’t unique to FT. Circuit breakers are causing this. Trades are executing when trading commences.

Does this mean, I will just have to wait till tomorrow morning to be able to upgrade to Plus? Have got the same problem, with not being able to add the card for Plus membership