You need to apply and pick up all forms of government ID (personal ID card, passport, etc) in Poland in person, no exceptions. So I think you may have to pick up your birth certification in person as well.
The following persons are entitled to apply and pick up the civil status records (birth certificate included):
- The person to whom the act relates
- Parent
- Brother
- Sister
- Spouse
- Grandmother
- Grandfather
- Child
- Grandson
- Granddaughter
- In the case of ordering the write-offs by unauthorized persons, presentation of documents confirming the existence of a legal interest is required upon receipt.
A power of attorney is necessary in the written form, however it doesn't have to be apostilled.
