Normally bitcastle is allowing ID card & passport but you can provide other documents on behalf of the ID card section (in other words, depending on each nation, there will be several cards that can be accepted as ID card), here are some examples:
① Driver's license (front and back)
② My number card (front)
③ Passport (the page with your photo)
④ Re-entry Permit (page with your photo)
⑤ Ground Self-Defense Force personnel card (front and back)
⑥ Real Estate Broker Certificate (Front)
⑦ Temporary driving license (front and back)
⑧ Voluntary return driver's license (front and back)
⑨ Residence permit (front and back)
⑩ Status of residence card (front and back)
⑪ Basic Resident Register card (front and back)
Just to name a few.
If you have further inquiries, please don't hesitate to contact our Support Team via "Contact Us" function.