My controller fell out of the bag landing on the screen cover then traveled for a few hours which resulted is scratches that make reading the screen hard.
Is there some means to order parts for the RC1B controller?

Hello there. I am sorry to read and to know what happened to your DJI RC1B remote controller. Since this unfortunate event happened I would recommend you to contact our DJI support team at https://www.dji.com/support?site=brandsite&from=nav for further assistance for further assistance . Just a reminder that  DJI do not recommend doing a DIY in fixing the said DJI drone to avoid further damaging the said unit. Thank you.

I tried the 'Support' link but they have no option for the screen cover/plastic.