A complaint can be filed with the Competition Authority via e-Government (e-Devlet) or in writing; the infringement and the evidence are summarised. Any request for confidentiality of identity should be stated separately.
Most contracts are subject to ordinary written form; transactions such as the sale of real estate or the transfer of shares may require a notary or official form. Non-compliance with the required form creates a risk of invalidity.
The parties may choose the language they wish; however, a sworn translation may be required if the contract is to be submitted to official authorities. For foreign-language contracts, adding a Turkish translation is advisable to ease interpretation in the event of a dispute.