Tefal X Force TY99F1 Repair Delay - Refund Right Ignored

I purchased a Tefal X-Force Flex TY99F1 vacuum cleaner from Vatan Computer in 2025. Within a year, the device broke down multiple times and is currently in service for the second time. I delivered the product to the authorized service via Vatan Computer on 17 February 2025 with service number 6MS0186842. The legal maximum repair period of 20 working days, including Saturdays, expired on 12 March 2025, yet as of today 34 days have passed since delivery and my grievance continues to grow. When the legal period expired, I called Vatan Computer  and clearly stated that I wanted to exercise my refund right under Consumer Law No. 6502 and that I did not accept another repair. The representative told me that a refund request had been created and that I would be informed via SMS, but I did not receive any SMS or call. When I called Vatan again about a week later, this time they said they were “waiting for Tefal” and directed me to the service. When I called Tefal, I encountered a complete scandal: there was no refund request recorded under my name or service number in their system. In addition, they stated that they were still “waiting for parts” for a device whose legal repair period had long expired, which I see as a clear violation of my legal rights. A Tefal representative told me that they would investigate and call me back, but no one ever returned. At this point, I believe Vatan Computer misled me by saying “a petition was created” although no refund request was actually entered into Tefal’s system, and that Tefal continued to hide behind the excuse of “waiting for parts” despite the expiry of the legal period. Two large companies are effectively making the consumer pay the price for their own lack of communication and systemic problems, and I find it unacceptable that I am left without a device for such a long time and forced to shuttle between them. I demand an immediate end to these delaying tactics, the recognition of my rights arising from the expiry of the 20-working-day repair period, and the urgent approval of my refund request for the product under service number 6MS0186842. Otherwise, I state that I will apply to the Consumer Arbitration Committee with my SMS records and service documents. I expect my grievance to be resolved urgently.