Avoiding picking up a letter will protect against dismissal?

When an employee refuses to pick up a letter or, despite advice note notifying that a letter is waiting to be picked up at the post office, does not retrieve it, this does not mean that the termination has not occurred. In such situation it is assumed that the employee received the letter at the first attempt at delivery, or, if there were any objective reasons that prevented them from collecting the letter (e.g. the employee was staying in a hospital) the first day after the end of the reason should be considered the date of delivery. – Paweł Sych comments for Rzeczpospolita.

The article in Polish is avialible: here.