I would like to register my new washer dryer (WD90J6A10AW) for the 5 year warranty as stated on the machine with a big impressive sticker, however when I try on do this after registration on the Samsung website, the model number does not appear on the drop down list (on the warranty register webpage) so I can't register.

One of the reasons I bought this was due to the long warranty - can anyone please help? Thank you