On April 14, 2024, I purchased a Roborock S8 Pro Ultra Wet & Dry Robot Vacuum from Vatan Bilgisayar. Shortly after the purchase, the device began repeatedly displaying a “height sensor error,” which turned into a chronic malfunction that prevented the product from operating properly and consistently. On January 7, 2025, I sent the device to the authorized service center, Delta Service. The service claimed that the malfunction was caused by “liquid contact.” However, this claim is not accurate.
The product is designed as a wet-and-dry robot vacuum, the cleaning environment is a wet-dry floor, and the device was used strictly in accordance with its intended purpose. There was no liquid spill, pooling water, or abnormal exposure to liquid. Additionally, the mopping feature is designed by the manufacturer to operate with controlled liquid contact.
Unfortunately, about one month later, the device started showing the same error again. This means the service intervention did not provide a permanent solution, the same defect reoccurred, and the repair effectively constituted a defective repair. As a result, on December 22, 2025, I sent the device again to Delta Service through Vatan Bilgisayar and submitted all requested documents in full.
Despite this, the service process was prolonged, no clear or satisfactory information was provided, and finally, on January 26, 2026, the service once again claimed “liquid contact” and demanded an excessive repair fee of approximately $800
The fact that the issue was not resolved despite my earlier payment of approximately $220 for the first repair, and that I am now being asked to pay such a high amount again for the same alleged reason, has seriously damaged customer satisfaction and brand trust.
Because the product shows a chronic defect despite proper use, the initial repair failed to provide a permanent solution, and I am being asked to pay repeatedly, I request that the device be replaced free of charge with a brand-new unit or that the full purchase price be refunded. I believe a refund would be the most reasonable solution so that I can choose a different brand. I kindly ask that this complaint be resolved urgently, with a clear and written explanation, in the interest of customer satisfaction and brand reliability.
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