My MSI Katana Screen Defect Returned, but Service Now Says "No Issue Found"

I dropped off my MSI Katana 17 B13VFK-1037XTR model laptop, serial number K2408N0093347, at MSI Service Point on 06/08/2026 due to a screen issue. There are white spots and marks obstructing the display on my device's screen, so I can't get proper use out of it.
The same problem occurred before as well; during a previous service process dated 12/09/2024, I was given a replacement report for this issue. However, even though the same problem has recurred today, this time the service center sent the product back to me with a report stating: "screen checks were performed upon customer complaint, extended tests were carried out, no issue was found on the LCD panel, hardware and software tests were performed, and the reported fault was not detected." In other words, having previously received a replacement report for the same problem, it's unacceptable to me that no action is being taken this time, with them claiming there's no problem at all.
The white spots and marks obstructing the display directly affect my daily use, and I'm unable to benefit from the device normally. For this reason, taking into account the replacement report previously issued for my device, I am requesting that my screen issue be permanently resolved and that my product be replaced. Otherwise, I would like to inform you that I will have to apply to the Consumer Arbitration Committee to pursue my rights.