Note that, at least in France, you can't do a SEPA direct debit with only the account number. You need a SEPA dd "mandate" which is a (paper or electronic) doc

Note that, at least in France, you can't do a SEPA direct debit with only the account number. You need a SEPA dd "mandate" which is a (paper or electronic) document account owner asks their bank for, containing a unique identifier