Karaca Robotea Pro Repeatedly Failed, Missing at Service Center

My Karaca Çaysever Robotea Pro 4 in 1 Glass Starlight, which I purchased from Karaca, developed a fault while still under warranty. The product was serviced three times for the same mainboard failure, and the identical issue reoccurred after each repair. When I returned the product to the service center again, I was informed that it would be sent to Karaca's headquarters in Istanbul for further inspection and, if necessary, replacement. The product was sent to the Istanbul center on 22.05.2026, but despite a considerable amount of time having passed, no action has been taken and I have not received any clear information about its status. After I submitted a complaint, I was told that the shipment had still not been received, that a technical investigation would be carried out, and that I would be updated afterward. However, the process continues to be delayed without any certainty, and I have not been given any clear timeframe for when it will be resolved or when I will receive a response. My product, registered at Ulus Seher Elektronik Service under reference number SRV-1406673-N2S1Q, is a device I use at least five times every day, so being without it has caused me significant inconvenience. I request that my product be located immediately, repaired if possible, replaced if the fault cannot be fixed, or that I be provided with a new replacement if the product cannot be found. I also request a clear written update regarding the current location of my product so that this ongoing uncertainty can finally be resolved.