Unfortunately, we cannot adjust the warranty in this case, as it is an offer from a third-party dealer. Alternatively, we would have the "Brother MFC-J4540DWXL" with 36 months warranty in our range. You can find the corresponding product on the following link: Brother MFC-J4540DWXL (ink cartridge, colour)

I have also had this problem with a monitor and a notebook. Digitec usually adjusts the warranty period in the online shop, and you can also write to the support team. It's best to point this out before buying and only order when the warranty period has also been adjusted. The other way round is also possible, but more complicated.