IMO the translation of when you add funds to your Vault, sounds (and looks) a little bit odd in german.
I would change it from:
“Zum Konto Nr. Vaultname” (Equal to “To Account Number Vaultname”)
“Zu Vaultname” (Equal to “To Vaultname”)
“Zum Vault Vaultname” (Equal to "To Vault Vaultname).
The “Nr.” part of it is a little bit confusing at least.
Btw. Revolut is awesome! Keep it up