Citroen C4X Shine Bold 1.2 Puretech 130 EAT8 V1  Is Missing Advanced Comfort Leather Seats

We purchased a C4X shine bold 1.2 puretech 130 EAT8 V1 model vehicle from Ankara Otosay in November. During the introduction process, the sales representative shared a document titled "C4X" which includes technical and equipment features. I asked the sales representative if two optional features mentioned in the document, "Wireless charging technology" and "Advanced Comfort Leather Seats (with Massage Function)," were available. The sales representative responded, "Both of these options are available." During the delivery stage, I noticed that the front and head parts of the seats were made of fabric while the remaining parts had a leather-like appearance. It didn't occur to me to question whether this was the specified seat in terms of equipment and to investigate if the massage feature was present. However, while reviewing the user manual that came with the vehicle, I noticed that the control button for the massage feature was not present in the car. Therefore, I concluded that the "Advanced Comfort Leather Seats (with Massage Function)" mentioned as an option in the document were not present in the delivered vehicle. To clarify the matter, I contacted the sales representative again, and I was informed that the vehicle was delivered with leather seats and wireless charging technology, and they couldn't do anything about the massage feature, which is only available in electric vehicles. To escalate the issue to higher authorities, I had a conversation with the Citroen Customer Representative and subsequently communicated the matter in writing with supporting documents. The Citroen Customer Representative stated that the issue would be evaluated in their department, and the response would be provided by the following Friday at the latest. On the following Friday, I received a call from the Customer Representative, informing me that the evaluations were ongoing, and the outcome would be communicated by the next Friday. The lengthy process of evaluating the matter had created an expectation that they had realized their mistake and would propose a solution to compensate for my inconvenience. However, on the second Friday, when I was contacted by the Customer Representative, I was informed that Citroen did not see the need for any action to be taken. I will not leave the matter here and proceed with the necessary application to the Consumer Arbitration Board because I firmly believe that I am justified in this situation.