You can submit a query, request or complaint to the Hellenic Telecommunications and Post Commission (EETT) if a new wireless device does not comply with the requirements (e.g. does not bear a CE marking, is not accompanied by a declaration of conformity).
You will need to clearly describe the problem and attach the appropriate documents (e.g. photos and purchase receipts) to substantiate your complaint.
Before submitting the complaint, it is advisable to be informed about therequirements for wireless devices and related responsibilities.