Marmaris Guidebook

When making purchases keep all receipts.
If you believe you have been overcharged or cheated either in terms of items bought or services rendered please contact the local police (Zabita, tel. 153) and/or fax your complaint to the Consumer Protection Directorate at the Ministry of Industry and Trade at: T.C. Sanayi ve Ticaret Bakanligi Tuketicinin ve [...]

As a foreign visitor, you can claim back the tax you pay on your purchases and receive immediate cash refund on departure at most international ports of Turkey.
Here is how:
1- Shop wherever you see the Global Refund tax-free sign. Whenever you make a purchase, just ask for your tax free invoice / cheque.
2- [...]