While we can only support U.S. Visa and MasterCard debit cards at the moment, we’re actively working to bring our transfers API to our users in other countries."
.... uhm or just use bitcoin ...
Understatement of the year.
For the rest of us, this could be pretty interesting.
For starters, there's a ton of alternatives, but more importantly giving out the debit card number is high risk - much worse even than handing out your credit card details (getting charges dropped / charged back is much more effort with a debit card) - whereas giving out your bank account details is not (if bank lets anyone do anything other than depositing money in your account with just your account details, the liability is entirely on them).
And for most transfers within the EU, you can do an online electronic transfer and get the money to the recipient in <2 hours - very often in less than 10 minutes.