Roborock Qrevo Master Brush and Mop Problems After Service

I purchased a Roborock Qrevo Master from the main seller on N11 in Ankara, and after about 2–3 months of use, frequent problems started with the brushes and mops. The cleaning performance clearly decreased and the parts did not work as they should. Because of this, I sent the device to the authorized service. However, when the product was returned to me, I saw that the problem was only partially dealt with, the device was not properly cleaned, and the problematic parts were not properly repaired but rather sent back in an unsatisfactory condition. The service process did not solve the issue and left me dissatisfied. I request that this fault be fully remedied and compensated, and that if a permanent solution cannot be provided, my device be changed with a new one. In addition, I expect the service quality to be improved so that similar situations do not recur and that my mağduriyet is eliminated as soon as possible.