By now it should be clear that any e-bank for consumers should receive e-invoices for one-click approval. Before that the service is just a typewriter - to fill in lots of details and lenghty reference numbers. Salary/pension/direct debit advices etc statements should also be just one click away from the credit transaction.
Any SME-e-banking should have the send-e-invoice form and as soon as possible also support sending invoices as exel- or printfile as a minimum.
Many banks have it - most will have it rather soon. Have you asked your bank for their timetable?