Given that I hold a selling account on various platforms, e.g. Empik, Shoper, do I have to undergo a separate verification performed by you as well?

If the documents have already been submitted earlier and it hasn’t been 6 months yet, it’s not necessary to send them in once again. If, however, NIP [Tax ID] requires re-verification, we’ll ask you to provide valid documents. Each business solution must be registered independently.