Hi there. I’ve just received my card but am unable to activate it.
After entering the 9 digit number it cycles but times out.
I’ve tried several times. Have rebooted the app and the phone. All with no success 
I’ve just the same, spoken to Dillon in the app and it’s a known issue at the moment,
I’m keeping an eye on the below link
https://mondo.statuspage.io
It’s all back up and working for me now.