Polish Post: don't be fooled, we don't sell undelivered parcels
CERT Poczta Polska is warning about the latest campaign targeting the company's customers. Fraudsters, posing as the national postal operator, are offering the "opportunity to purchase" pallets of undeliverable shipments allegedly sitting in warehouses. The information is being disseminated via social media, primarily Facebook. It includes a short description and photos of palletized shipments with the Poczta Polska logo, tempting them with attractive prices.
A sample advertisement is presented below:

CERT Poczta Polska has already taken steps to block this phishing campaign.
Please be vigilant in your online activities, especially when the offer you wish to take advantage of is extremely attractive or you are asked to provide a wide range of data.
At the same time, we remind you:
If you have received a message in which the sender impersonates Poczta Polska or you have found a website impersonating Poczta Polska or one of the companies from the Poczta Polska Capital Group, immediately forward this information to the CERT Poczta Polska team at the following e-mail address: jakodział@poczta-polska.pl