My guess is the filter light just needs a manual rest, most Samsung fridges do not auto detect when a new filter is installed, what happens when you hold the water button in for 5 seconds with one of the replacement filters installed?
Can you advise what model of Samsung fridge freezer you have?
The filters deteriorate based on water flow, not by age (in the most part), a filter should last for around 1000 litres.
Sorry for the confusion, Samsung like to keep us on our toes, your model requires you to hold the Ice Type button for 3 seconds, which should be under the LCD display.
Excellent, appreciate if you can rate the service received so I may close the case.