Mobile Phone Registration Issue on Trendyol.com

I discovered that the IMEI of the mobile phone I purchased from Trendyol.com is unregistered. After speaking with customer service, they informed me that the seller must provide the invoice, and without it, the return process cannot begin. I have been left in distress due to the seller's failure to provide the invoice, and I am striving to assert my rights. I have applied to the Consumer Arbitration Board without an invoice and explained the situation. I will share the process for those who, like me, are affected. If the issue persists, I can also share screenshots of my correspondence with Trendyol customer service.
As it appears, 1 day has passed and there is no response from Trendyol.
Today is March 11 and the invoice is still not here. There is also no contact from Trendyol.
No response from Trendyol. The Consumer Arbitration Committee has requested a defense, and I am waiting.







