Beko BM 6047 Dishwasher Debacle - Wrong Model Delivered

My father-in-law and wife bought a Beko dishwasher, model BM 6047, from Burcuoğlu company, a Beko dealer in Balıkesir Gönen. The product was not delivered at the time of purchase, but it was agreed to be delivered after the wedding. Following the wedding, we made arrangements with the company for the delivery, and the product was successfully delivered to my father-in-law's house. Given that our residence is in Sakarya Adapazarı, we decided to rent a vehicle to transport the product and other trousseau items from Gönen to Sakarya. We successfully completed the installation process. Unfortunately, my wife was not present during the installation and transportation process. Upon her arrival back home, she discovered that the machine she had acquired was actually a BM 6046 model, rather than the one we had intended to purchase, suggesting an incorrect product. We had a conversation about the situation with my father-in-law while he was away, and once he returned to Gönen, we had discussions with the purchasing company. My spouse also had a conversation with the sales representative on the telephone. Upon clarifying the situation, we were informed that the products were indeed identical models, with no discernible distinctions between them. It's worth noting that when we made the purchase, we were surprised to find that we paid a higher price for this product. Interestingly, we recently discovered that the same product is being sold online for ₺24,000, while the one we purchased in person only cost ₺18,000. The seller provided us with ₺3,000 as compensation. We expressed our inability to accept this offer. As a result of our persistent efforts, they finally began discussing the possibility of bringing the right product. We conveyed our frustration about the situation where we had already transported the product to Sakarya but were unable to return it due to their error. It was clear that we were the ones who faced the consequences. They insisted that it was not their responsibility. It's completely unfair of them to expect me to return the product after they delivered it incorrectly and I had to pay to bring it all the way to Sakarya. After discussing the option of involving the Consumer Arbitration Board, they abruptly terminated the conversation in a disrespectful manner. After reaching out to Beko and providing them with an explanation of the situation, they assured us that they would take the matter seriously and follow up with us. However, despite several days passing, we have yet to receive a response. When we inquired about utilizing the machine, they responded with, "Negative, hold off until additional guidance is provided." We've been waiting for a response for quite some time now, and unfortunately, we're unable to utilize the machine in our household. We have been affected by an error made by the dealer. If we don't receive a prompt solution regarding the incident, we will escalate the matter to the Consumer Arbitration Board.