But again, I am not talking about myself, im talking about the hyptothetical person who might not be the perfect customer. My in-laws have had their gas cut more than once because of non-payments, or were only allowed to keep the gas running because they told them "we will wire you the last 3 unpaid invoices at once on day x".
For me to personally end up in this situation the bank would need to somehow SEPA out like 2 years worth of mortgages at once in a short timeframe, which is not a realistic scenario.
If you have an app, you'll notice immediately that a payment bounced, via notification. If not, you'll get a letter informing you that it bounced.
Also: it takes A LOT of letters and court orders for them to cut your utilities. I'm not joking, it's more than a couple of Mahnungs, then it goes to debt collection, then it goes to court. The court will then take the money out of your account.
That's all before power gets cut.
It definitely won't be because of a single missed payment.
Even in the situation above: if your in-laws somehow had no balance "at once on day x" because of a fake SEPA, they would be able to reverse via app, or go to the bank and reverse.
For me to personally end up in this situation the bank would need to somehow SEPA out like 2 years worth of mortgages at once in a short timeframe, which is not a realistic scenario.