A standing order is set up by an individual, ie you, with your bank to pay a regular defined sum into another account. You have full control over it. A direct debit (which is presumably what you'll have with your internet provider) is where you give a service supply company or public sector organisation like Revenue your bank details and signed mandate to withdraw unspecified sums on a specified date. You can't just withdraw money from someone else's account with their IBAN but if you were planning to conduct an elaborate scam it might be a useful piece of information. We should all be on the alert for scams.