It's strange how the US just can't seem to figure out sensible payment systems. Payment in the eurozone is not exactly perfect, banks being banks and all that, but this kind of thing is almost a non-problem: If there is a SEPA direct debit drawn from your account that you object you, you simply tell your bank (online banks tend to have the option in the online banking interface for every direct debit transaction) and the amount is immediately credited back to your account, with the same value date as the previous debit. It's then the problem for the payee and their bank to sort out.
So what? The SEPA shift was also a compat nightmare - even worse than in the US I'd say. 34 countries with each having their own system of bank and account IDs that all had to be rolled over into one common system, and banks now being allowed only one day of delay (which used to be up to a week for international).
The EEA covers over 500M people, way more than the US does, with way more languages. It's not impossible to do such a migration, the difference is that EU legislators were fed up with the brokenness and forced the migration via regulation while the US government believes that "the market will fix everything". No it will not, the market will only deliver what is the lowest acceptable effort.
