SaltyNZ:
...
TL;DR it is not "incompetence" it is the tail end of a massive migration that few if any have ever completed before.
Acknowledging that migrating billing platforms is complex, mistakes and errors will happen. This is acceptable.
Continuing to get it wrong and repeatedly sending erroneous bills once a customer queries it, rather than sorting it properly, is not. Incompetence is the correct term used by the OP in the thread title.



