Chery Tiggo 8 Pro Engine Warranty Canceled For Few Days Maintenance Delay

I took my Chery Tiggo 8 Pro 1.6 TDGI vehicle to Chery Van Berk authorized service in Van today for its 10,000 km maintenance. At the service, I was told that the engine of my vehicle was out of warranty and that my warranty right was terminated on the grounds that I exceeded the maintenance period by a few days. Until this moment, I was never informed that a delay of a few days in maintenance would completely terminate the engine warranty, and I did not receive any warning, reminder or information message about this. The service stated that they would carry out the 10,000 km maintenance, but that I would have to pay 14,500 TL and that even if this maintenance was performed, the engine warranty would not continue. I do not find it fair or acceptable that such a high fee is requested for routine maintenance and, more importantly, that my engine warranty is unilaterally terminated for a delay of a few days, without any prior notification or reminder. I contacted Chery customer service regarding this issue, but I was told that the warranty could not be continued because the maintenance period had been exceeded. I believe that this situation arose due to insufficient information and lack of notification about the maintenance interval, and that I was victimized as a result. I request that the engine warranty of my vehicle be reinstated and that my warranty rights continue without interruption. In addition, I request a review and correction regarding the maintenance fee demanded under these conditions, and I expect a clear and written explanation from the authorized units about how this process will be resolved.