When a seller will not replace a product, refund your money or cancel a subscription, and writing to customer support gets you nowhere, the next stop in Türkiye is the consumer arbitration board (tüketici hakem heyeti). You do not have to write a petition and travel anywhere: the Ministry of Trade's Consumer Information System (TÜBİS) opens through the e-Devlet portal, so you can file from home. The steps below cover which board has jurisdiction, which documents make your case easier, and what happens after you submit. The monetary threshold is re-set every year, so always confirm the current figure before you file.