Question
After upgrade to PBA 5.5.9 (or to PBA 6.0.1) there are two invoice notes generated for each invoice - customer country and customer phone. What are they?
Answer
That is an intended product change ("Two evidences of correctness of assigned tax zone") mentioned in the update release notes.
There is no parameter to disable the notes generation, there is a request #PBA-62111 to have possibility to disable it.