CBR750 Product was registered as part of RMA-Requiring 4 jpg

I have the 4 jpg files it is requesting:  receipt (just have RMA), front, back, and underneath of CBR750.  Do not see a place to attach these files, since I did not do the initial registration.  Technical Support did this when they sent me the replacement CBR750.  Also, did not tell me where to send the 4 files. Does anyone know?  Thank you!