eBay documents verify

I am start to selling on eBay. Everything's fine but one day, they limited my selling and i have to fax ID scan, scan bills, invoices to verify my account. Has anyone pass this step? Can i fax them electronically via efax or etc? Do these documents have full color or only black and white? Every help will be very appreciate. Thank you!

Thank you for your reply. Can i use efax or fax.com to fax theme?