In case the you choose the free form for filing a complaint, the complaint must contain the following elements:

customer identification data:

a) in the case of a natural person - name and surname, date of birth, place of residence, email, telephone number;

b) in the case of a legal entity - business name or name, identification number, registered office, email and telephone number;

c) identification data of your legal representative - name and surname, date of birth, residence, email, telephone number;

d) a factual description of the complaint - what the complaint concerns, what service or contract the complaint concerns, the reason for the customer's dissatisfaction, dates, time, etc;

e) or provide supporting documents (e.g. power of attorney, copy of the contract to which the complaint relates, etc.).