If you are in the USA perhaps you need to demand a paper ballot?
Also if you are in the USA, you could also contact your local elections commissioners (by whatever name or designation) and ask them how it is done in
your locality. If they tell you it cannot be done, you know they are lying and will need to dig deeper.
Also, you may need to organise a group of people who intend to write in a candidate (and bang pots and drums till you get it worked out.)