Hi,
I have a trial version for volumio which expires, I put the revolut card but somehow the bank refuses the payment to volumio… I also had a tk to volumio but I did not receive any information until now…
Thanks
Now it is ok, dam revolut 
I need it to say that the payments was suspicios then declined it, then they say to make another one and it was OK, not very intuitive…
Yeah, I use it a few times a week for my € payments and this happened to me a while ago and confused me as well. It have not found a way to follow up such an issues in a satisfactory way, but the notice is in principle a good thing.
Other than that, Revolut beats the hell out of traditional banking, love it.